diff --git a/package.json b/package.json
index 70089b1..0096267 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,8 @@
     "tailwindcss": "^4.0.6",
     "tw-animate-css": "^1.3.6",
     "vite-tsconfig-paths": "^6.0.5",
-    "zod": "^4.3.6"
+    "zod": "^4.3.6",
+    "zustand": "^5.0.11"
   },
   "devDependencies": {
     "@inlang/paraglide-js": "2.10.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9b66164..c7b2a32 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -104,6 +104,9 @@ importers:
       zod:
         specifier: ^4.3.6
         version: 4.3.6
+      zustand:
+        specifier: ^5.0.11
+        version: 5.0.11(@types/react@19.2.10)(react@19.2.4)(use-sync-external-store@1.6.0(react@19.2.4))
     devDependencies:
       '@inlang/paraglide-js':
         specifier: 2.10.0
@@ -4866,6 +4869,24 @@ packages:
   zod@4.3.6:
     resolution: {integrity: sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==}
 
+  zustand@5.0.11:
+    resolution: {integrity: sha512-fdZY+dk7zn/vbWNCYmzZULHRrss0jx5pPFiOuMZ/5HJN6Yv3u+1Wswy/4MpZEkEGhtNH+pwxZB8OKgUBPzYAGg==}
+    engines: {node: '>=12.20.0'}
+    peerDependencies:
+      '@types/react': '>=18.0.0'
+      immer: '>=9.0.6'
+      react: '>=18.0.0'
+      use-sync-external-store: '>=1.2.0'
+    peerDependenciesMeta:
+      '@types/react':
+        optional: true
+      immer:
+        optional: true
+      react:
+        optional: true
+      use-sync-external-store:
+        optional: true
+
 snapshots:
 
   '@acemir/cssom@0.9.31': {}
@@ -9690,3 +9711,9 @@ snapshots:
   zod@3.25.76: {}
 
   zod@4.3.6: {}
+
+  zustand@5.0.11(@types/react@19.2.10)(react@19.2.4)(use-sync-external-store@1.6.0(react@19.2.4)):
+    optionalDependencies:
+      '@types/react': 19.2.10
+      react: 19.2.4
+      use-sync-external-store: 1.6.0(react@19.2.4)
diff --git a/prisma/data.ts b/prisma/data.ts
index adef299..9e00b35 100644
--- a/prisma/data.ts
+++ b/prisma/data.ts
@@ -15,3 +15,14 @@ export const settingsData = [
     description: 'The keywords of the site',
   },
 ];
+
+export const userData = [
+  {
+    name: 'Raysam',
+    email: 'raysam024@gmail.com',
+  },
+  {
+    name: 'Raysam',
+    email: 'juines.liu@gmail.com',
+  },
+];
diff --git a/prisma/migrations/20260214113407_notification/migration.sql b/prisma/migrations/20260221093213_notification/migration.sql
similarity index 91%
rename from prisma/migrations/20260214113407_notification/migration.sql
rename to prisma/migrations/20260221093213_notification/migration.sql
index f284c89..3a269e3 100644
--- a/prisma/migrations/20260214113407_notification/migration.sql
+++ b/prisma/migrations/20260221093213_notification/migration.sql
@@ -48,7 +48,10 @@ CREATE TABLE "notification" (
 );
 
 -- CreateIndex
-CREATE INDEX "notification_userId_idx" ON "notification"("userId");
+CREATE INDEX "notification_userId_readAt_idx" ON "notification"("userId", "readAt");
+
+-- CreateIndex
+CREATE INDEX "notification_readAt_idx" ON "notification"("readAt");
 
 -- AddForeignKey
 ALTER TABLE "notification" ADD CONSTRAINT "notification_userId_fkey" FOREIGN KEY ("userId") REFERENCES "user"("id") ON DELETE CASCADE ON UPDATE CASCADE;
diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 10ec0c2..a88dabb 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -176,6 +176,7 @@ model Notification {
 
   user                    User            @relation(fields: [userId], references: [id], onDelete: Cascade)
 
-  @@index([userId])
+  @@index([userId, readAt])
+  @@index([readAt])
   @@map("notification")
 }
diff --git a/prisma/seed.ts b/prisma/seed.ts
index bf6e5b6..fe80209 100644
--- a/prisma/seed.ts
+++ b/prisma/seed.ts
@@ -1,7 +1,7 @@
 import { auth } from '@lib/auth';
 import { PrismaPg } from '@prisma/adapter-pg';
 import { PrismaClient } from '../src/generated/prisma/client.js';
-import { settingsData } from './data.js';
+import { settingsData, userData } from './data.js';
 
 const adapter = new PrismaPg({
   connectionString: process.env.DATABASE_URL!,
@@ -32,6 +32,19 @@ async function main() {
   }
 
   console.log('---------------Created admin user-----------------');
+
+  userData.map(async (user) => {
+    await auth.api.createUser({
+      body: {
+        email: user.email,
+        password: 'Th@m!S@m!040390',
+        name: user.name,
+        role: 'user',
+      },
+    });
+  });
+
+  console.log('---------------Created member user-----------------');
   await prisma.setting.deleteMany();
 
   const listSettings = [
diff --git a/src/components/Notification.tsx b/src/components/Notification.tsx
index dbee7cd..e6351e7 100644
--- a/src/components/Notification.tsx
+++ b/src/components/Notification.tsx
@@ -1,9 +1,11 @@
+import { updateReadedNotification } from '@/service/notify.api';
 import { notificationQueries } from '@/service/queries';
+import useNotificationStore from '@/store/useNotificationStore';
 import { formatTimeAgo } from '@/utils/helper';
 import { cn } from '@lib/utils';
 import { m } from '@paraglide/messages';
 import { BellIcon } from '@phosphor-icons/react';
-import { useQuery } from '@tanstack/react-query';
+import { useMutation, useQuery } from '@tanstack/react-query';
 import { Link } from '@tanstack/react-router';
 import { Button } from '@ui/button';
 import {
@@ -15,15 +17,42 @@ import {
   DropdownMenuSeparator,
   DropdownMenuTrigger,
 } from '@ui/dropdown-menu';
+import { useEffect, useState } from 'react';
+import { toast } from 'sonner';
 import { Item, ItemContent, ItemDescription, ItemTitle } from './ui/item';
 
 const Notification = () => {
-  const { data: notifications } = useQuery(notificationQueries.topFive());
+  const [open, _setOpen] = useState(false);
+  const { hasNew, setHasNew } = useNotificationStore((state) => state);
+  const { data } = useQuery(notificationQueries.topFive());
 
-  if (!notifications) return null;
+  const { mutate: updateReaded } = useMutation({
+    mutationFn: () => updateReadedNotification(),
+    onError: (error: ReturnError) => {
+      const code = error.code as Parameters<
+        typeof m.backend_message
+      >[0]['code'];
+      toast.error(m.backend_message({ code }), {
+        richColors: true,
+      });
+    },
+  });
+
+  const onOpenNotification = (isOpen: boolean) => {
+    _setOpen(isOpen);
+    updateReaded();
+  };
+
+  useEffect(() => {
+    if (data) {
+      setHasNew(data.hasNewNotify);
+    }
+  }, [data]);
+
+  if (!data) return null;
 
   return (
-    <DropdownMenu>
+    <DropdownMenu open={open} onOpenChange={onOpenNotification}>
       <DropdownMenuTrigger asChild>
         <Button
           size="icon-lg"
@@ -32,9 +61,9 @@ const Notification = () => {
         >
           <BellIcon
             size={32}
-            className={cn('origin-top', { 'animate-bell-ring': true })}
+            className={cn('origin-top', { 'animate-bell-ring': hasNew })}
           />
-          {true && (
+          {hasNew && (
             <span className="absolute top-1 right-1 rounded-full w-2 h-2 bg-red-600"></span>
           )}
           <span className="sr-only">{m.ui_label_notifications()}</span>
@@ -46,26 +75,32 @@ const Notification = () => {
         </DropdownMenuLabel>
         <DropdownMenuSeparator />
         <DropdownMenuGroup>
-          {notifications.map((notify) => {
-            return (
-              <DropdownMenuItem key={notify.id}>
-                <Item className="p-0">
-                  <ItemContent>
-                    <ItemTitle className="text-sm">
-                      {m.templates_title_notification({
-                        title: notify.title as Parameters<
-                          typeof m.templates_title_notification
-                        >[0]['title'],
-                      })}
-                    </ItemTitle>
-                    <ItemDescription>
-                      {formatTimeAgo(new Date(notify.createdAt))}
-                    </ItemDescription>
-                  </ItemContent>
-                </Item>
-              </DropdownMenuItem>
-            );
-          })}
+          {data.list && data.list.length > 0 ? (
+            data.list.map((notify) => {
+              return (
+                <DropdownMenuItem key={notify.id}>
+                  <Item className="p-0">
+                    <ItemContent>
+                      <ItemTitle className="text-sm">
+                        {m.templates_title_notification({
+                          title: notify.title as Parameters<
+                            typeof m.templates_title_notification
+                          >[0]['title'],
+                        })}
+                      </ItemTitle>
+                      <ItemDescription>
+                        {formatTimeAgo(new Date(notify.createdAt))}
+                      </ItemDescription>
+                    </ItemContent>
+                  </Item>
+                </DropdownMenuItem>
+              );
+            })
+          ) : (
+            <DropdownMenuItem className="py-10 justify-center">
+              {m.common_no_notify()}
+            </DropdownMenuItem>
+          )}
         </DropdownMenuGroup>
         <DropdownMenuGroup>
           <DropdownMenuSeparator />
diff --git a/src/generated/prisma/internal/class.ts b/src/generated/prisma/internal/class.ts
index 3040677..33d3480 100644
--- a/src/generated/prisma/internal/class.ts
+++ b/src/generated/prisma/internal/class.ts
@@ -20,7 +20,7 @@ const config: runtime.GetPrismaClientConfig = {
   "clientVersion": "7.3.0",
   "engineVersion": "9d6ad21cbbceab97458517b147a6a09ff43aa735",
   "activeProvider": "postgresql",
-  "inlineSchema": "generator client {\n  provider = \"prisma-client\"\n  output   = \"../src/generated/prisma\"\n}\n\ndatasource db {\n  provider = \"postgresql\"\n}\n\nmodel User {\n  id            String         @id @default(uuid())\n  name          String\n  email         String\n  emailVerified Boolean        @default(false)\n  image         String?\n  createdAt     DateTime       @default(now()) @db.Timestamptz\n  updatedAt     DateTime       @updatedAt @db.Timestamptz\n  sessions      Session[]\n  accounts      Account[]\n  audit         Audit[]\n  notification  Notification[]\n\n  role       String?\n  banned     Boolean?  @default(false)\n  banReason  String?\n  banExpires DateTime?\n\n  members     Member[]\n  invitations Invitation[]\n\n  @@unique([email])\n  @@map(\"user\")\n}\n\nmodel Session {\n  id        String   @id @default(uuid())\n  expiresAt DateTime @db.Timestamptz\n  token     String\n  createdAt DateTime @default(now()) @db.Timestamptz\n  updatedAt DateTime @updatedAt @db.Timestamptz\n  ipAddress String?\n  userAgent String?\n  userId    String\n  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)\n\n  impersonatedBy String?\n\n  activeOrganizationId String?\n\n  @@unique([token])\n  @@index([userId])\n  @@map(\"session\")\n}\n\nmodel Account {\n  id                    String    @id @default(uuid())\n  accountId             String\n  providerId            String\n  userId                String\n  user                  User      @relation(fields: [userId], references: [id], onDelete: Cascade)\n  accessToken           String?\n  refreshToken          String?\n  idToken               String?\n  accessTokenExpiresAt  DateTime?\n  refreshTokenExpiresAt DateTime?\n  scope                 String?\n  password              String?\n  createdAt             DateTime  @default(now()) @db.Timestamptz\n  updatedAt             DateTime  @updatedAt @db.Timestamptz\n\n  @@index([userId])\n  @@map(\"account\")\n}\n\nmodel Verification {\n  id         String   @id @default(uuid())\n  identifier String\n  value      String\n  expiresAt  DateTime\n  createdAt  DateTime @default(now()) @db.Timestamptz\n  updatedAt  DateTime @updatedAt @db.Timestamptz\n\n  @@index([identifier])\n  @@map(\"verification\")\n}\n\nmodel Organization {\n  id          String       @id @default(uuid())\n  name        String\n  slug        String\n  logo        String?\n  createdAt   DateTime     @db.Timestamptz\n  metadata    String?\n  members     Member[]\n  invitations Invitation[]\n\n  color String? @default(\"#000000\")\n\n  @@unique([slug])\n  @@map(\"organization\")\n}\n\nmodel Member {\n  id             String       @id @default(uuid())\n  organizationId String\n  organization   Organization @relation(fields: [organizationId], references: [id], onDelete: Cascade)\n  userId         String\n  user           User         @relation(fields: [userId], references: [id], onDelete: Cascade)\n  role           String       @default(\"member\")\n  createdAt      DateTime     @db.Timestamptz\n\n  @@index([organizationId])\n  @@index([userId])\n  @@map(\"member\")\n}\n\nmodel Invitation {\n  id             String       @id @default(uuid())\n  organizationId String\n  organization   Organization @relation(fields: [organizationId], references: [id], onDelete: Cascade)\n  email          String\n  role           String?\n  status         String       @default(\"pending\")\n  expiresAt      DateTime     @db.Timestamptz\n  createdAt      DateTime     @default(now()) @db.Timestamptz\n  inviterId      String\n  user           User         @relation(fields: [inviterId], references: [id], onDelete: Cascade)\n\n  @@index([organizationId])\n  @@index([email])\n  @@map(\"invitation\")\n}\n\nmodel Setting {\n  id          String @id @default(uuid())\n  key         String @unique\n  value       String\n  description String\n  relation    String @default(\"admin\")\n\n  createdAt DateTime @default(now()) @db.Timestamptz\n  updatedAt DateTime @updatedAt @db.Timestamptz\n\n  @@map(\"setting\")\n}\n\nmodel Audit {\n  id        String   @id @default(uuid())\n  userId    String\n  action    String\n  tableName String\n  recordId  String\n  oldValue  String?\n  newValue  String?\n  createdAt DateTime @default(now()) @db.Timestamptz\n\n  user User @relation(fields: [userId], references: [id], onDelete: Cascade)\n\n  @@map(\"audit\")\n}\n\nmodel Notification {\n  id     String @id @default(uuid())\n  userId String\n\n  title   String\n  message String\n  type    String @default(\"system\")\n\n  link     String?\n  metadata String?\n\n  createdAt DateTime  @default(now()) @db.Timestamptz\n  readAt    DateTime? @db.Timestamptz\n\n  user User @relation(fields: [userId], references: [id], onDelete: Cascade)\n\n  @@index([userId])\n  @@map(\"notification\")\n}\n",
+  "inlineSchema": "generator client {\n  provider = \"prisma-client\"\n  output   = \"../src/generated/prisma\"\n}\n\ndatasource db {\n  provider = \"postgresql\"\n}\n\nmodel User {\n  id            String         @id @default(uuid())\n  name          String\n  email         String\n  emailVerified Boolean        @default(false)\n  image         String?\n  createdAt     DateTime       @default(now()) @db.Timestamptz\n  updatedAt     DateTime       @updatedAt @db.Timestamptz\n  sessions      Session[]\n  accounts      Account[]\n  audit         Audit[]\n  notification  Notification[]\n\n  role       String?\n  banned     Boolean?  @default(false)\n  banReason  String?\n  banExpires DateTime?\n\n  members     Member[]\n  invitations Invitation[]\n\n  @@unique([email])\n  @@map(\"user\")\n}\n\nmodel Session {\n  id        String   @id @default(uuid())\n  expiresAt DateTime @db.Timestamptz\n  token     String\n  createdAt DateTime @default(now()) @db.Timestamptz\n  updatedAt DateTime @updatedAt @db.Timestamptz\n  ipAddress String?\n  userAgent String?\n  userId    String\n  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)\n\n  impersonatedBy String?\n\n  activeOrganizationId String?\n\n  @@unique([token])\n  @@index([userId])\n  @@map(\"session\")\n}\n\nmodel Account {\n  id                    String    @id @default(uuid())\n  accountId             String\n  providerId            String\n  userId                String\n  user                  User      @relation(fields: [userId], references: [id], onDelete: Cascade)\n  accessToken           String?\n  refreshToken          String?\n  idToken               String?\n  accessTokenExpiresAt  DateTime?\n  refreshTokenExpiresAt DateTime?\n  scope                 String?\n  password              String?\n  createdAt             DateTime  @default(now()) @db.Timestamptz\n  updatedAt             DateTime  @updatedAt @db.Timestamptz\n\n  @@index([userId])\n  @@map(\"account\")\n}\n\nmodel Verification {\n  id         String   @id @default(uuid())\n  identifier String\n  value      String\n  expiresAt  DateTime\n  createdAt  DateTime @default(now()) @db.Timestamptz\n  updatedAt  DateTime @updatedAt @db.Timestamptz\n\n  @@index([identifier])\n  @@map(\"verification\")\n}\n\nmodel Organization {\n  id          String       @id @default(uuid())\n  name        String\n  slug        String\n  logo        String?\n  createdAt   DateTime     @db.Timestamptz\n  metadata    String?\n  members     Member[]\n  invitations Invitation[]\n\n  color String? @default(\"#000000\")\n\n  @@unique([slug])\n  @@map(\"organization\")\n}\n\nmodel Member {\n  id             String       @id @default(uuid())\n  organizationId String\n  organization   Organization @relation(fields: [organizationId], references: [id], onDelete: Cascade)\n  userId         String\n  user           User         @relation(fields: [userId], references: [id], onDelete: Cascade)\n  role           String       @default(\"member\")\n  createdAt      DateTime     @db.Timestamptz\n\n  @@index([organizationId])\n  @@index([userId])\n  @@map(\"member\")\n}\n\nmodel Invitation {\n  id             String       @id @default(uuid())\n  organizationId String\n  organization   Organization @relation(fields: [organizationId], references: [id], onDelete: Cascade)\n  email          String\n  role           String?\n  status         String       @default(\"pending\")\n  expiresAt      DateTime     @db.Timestamptz\n  createdAt      DateTime     @default(now()) @db.Timestamptz\n  inviterId      String\n  user           User         @relation(fields: [inviterId], references: [id], onDelete: Cascade)\n\n  @@index([organizationId])\n  @@index([email])\n  @@map(\"invitation\")\n}\n\nmodel Setting {\n  id          String @id @default(uuid())\n  key         String @unique\n  value       String\n  description String\n  relation    String @default(\"admin\")\n\n  createdAt DateTime @default(now()) @db.Timestamptz\n  updatedAt DateTime @updatedAt @db.Timestamptz\n\n  @@map(\"setting\")\n}\n\nmodel Audit {\n  id        String   @id @default(uuid())\n  userId    String\n  action    String\n  tableName String\n  recordId  String\n  oldValue  String?\n  newValue  String?\n  createdAt DateTime @default(now()) @db.Timestamptz\n\n  user User @relation(fields: [userId], references: [id], onDelete: Cascade)\n\n  @@map(\"audit\")\n}\n\nmodel Notification {\n  id     String @id @default(uuid())\n  userId String\n\n  title   String\n  message String\n  type    String @default(\"system\")\n\n  link     String?\n  metadata String?\n\n  createdAt DateTime  @default(now()) @db.Timestamptz\n  readAt    DateTime? @db.Timestamptz\n\n  user User @relation(fields: [userId], references: [id], onDelete: Cascade)\n\n  @@index([userId, readAt])\n  @@index([readAt])\n  @@map(\"notification\")\n}\n",
   "runtimeDataModel": {
     "models": {},
     "enums": {},
diff --git a/src/hooks/use-sse.ts b/src/hooks/use-sse.ts
new file mode 100644
index 0000000..7eb129a
--- /dev/null
+++ b/src/hooks/use-sse.ts
@@ -0,0 +1,24 @@
+import { useEffect } from 'react';
+
+export function useSSE(onMessage: (data: any) => void) {
+  useEffect(() => {
+    const eventSource = new EventSource('/api/notify');
+
+    eventSource.onmessage = (event) => {
+      try {
+        const parsed = JSON.parse(event.data);
+        onMessage(parsed);
+      } catch (err) {
+        console.error('Invalid SSE data', err);
+      }
+    };
+
+    eventSource.onerror = () => {
+      eventSource.close();
+    };
+
+    return () => {
+      eventSource.close();
+    };
+  }, [onMessage]);
+}
diff --git a/src/lib/notification.ts b/src/lib/notification.ts
new file mode 100644
index 0000000..4354c6b
--- /dev/null
+++ b/src/lib/notification.ts
@@ -0,0 +1,52 @@
+type Controller = ReadableStreamDefaultController;
+
+const userClients = new Map<string, Set<Controller>>();
+
+/**
+ * Thêm connection cho user
+ */
+export function addClient(userId: string, controller: Controller) {
+  if (!userClients.has(userId)) {
+    userClients.set(userId, new Set());
+  }
+
+  userClients.get(userId)!.add(controller);
+}
+
+/**
+ * Xoá connection khi tab đóng
+ */
+export function removeClient(userId: string, controller: Controller) {
+  const controllers = userClients.get(userId);
+  if (!controllers) return;
+
+  controllers.delete(controller);
+
+  // nếu user không còn tab nào mở thì xoá luôn
+  if (controllers.size === 0) {
+    userClients.delete(userId);
+  }
+}
+
+/**
+ * Gửi notification cho 1 user
+ */
+export function sendToUser(userId: string, data: any) {
+  const controllers = userClients.get(userId);
+  if (!controllers) return;
+
+  for (const controller of controllers) {
+    controller.enqueue(`data: ${JSON.stringify(data)}\n\n`);
+  }
+}
+
+/**
+ * Gửi cho tất cả user
+ */
+export function broadcast(data: any) {
+  for (const controllers of userClients.values()) {
+    for (const controller of controllers) {
+      controller.enqueue(`data: ${JSON.stringify(data)}\n\n`);
+    }
+  }
+}
diff --git a/src/routeTree.gen.ts b/src/routeTree.gen.ts
index 6d391c9..65a8254 100644
--- a/src/routeTree.gen.ts
+++ b/src/routeTree.gen.ts
@@ -11,6 +11,7 @@
 import { Route as rootRouteImport } from './routes/__root'
 import { Route as appRouteRouteImport } from './routes/(app)/route'
 import { Route as appIndexRouteImport } from './routes/(app)/index'
+import { Route as ApiNotifyRouteImport } from './routes/api/notify'
 import { Route as authSignInRouteImport } from './routes/(auth)/sign-in'
 import { Route as appauthRouteRouteImport } from './routes/(app)/(auth)/route'
 import { Route as ApiAuthSplatRouteImport } from './routes/api.auth.$'
@@ -40,6 +41,11 @@ const appIndexRoute = appIndexRouteImport.update({
   path: '/',
   getParentRoute: () => appRouteRoute,
 } as any)
+const ApiNotifyRoute = ApiNotifyRouteImport.update({
+  id: '/api/notify',
+  path: '/api/notify',
+  getParentRoute: () => rootRouteImport,
+} as any)
 const authSignInRoute = authSignInRouteImport.update({
   id: '/(auth)/sign-in',
   path: '/sign-in',
@@ -140,6 +146,7 @@ const appauthAccountChangePasswordRoute =
 
 export interface FileRoutesByFullPath {
   '/sign-in': typeof authSignInRoute
+  '/api/notify': typeof ApiNotifyRoute
   '/': typeof appIndexRoute
   '/account': typeof appauthAccountRouteRouteWithChildren
   '/kanri': typeof appauthKanriRouteRouteWithChildren
@@ -161,6 +168,7 @@ export interface FileRoutesByFullPath {
 }
 export interface FileRoutesByTo {
   '/sign-in': typeof authSignInRoute
+  '/api/notify': typeof ApiNotifyRoute
   '/': typeof appIndexRoute
   '/api/auth/$': typeof ApiAuthSplatRoute
   '/account/change-password': typeof appauthAccountChangePasswordRoute
@@ -182,6 +190,7 @@ export interface FileRoutesById {
   '/(app)': typeof appRouteRouteWithChildren
   '/(app)/(auth)': typeof appauthRouteRouteWithChildren
   '/(auth)/sign-in': typeof authSignInRoute
+  '/api/notify': typeof ApiNotifyRoute
   '/(app)/': typeof appIndexRoute
   '/(app)/(auth)/account': typeof appauthAccountRouteRouteWithChildren
   '/(app)/(auth)/kanri': typeof appauthKanriRouteRouteWithChildren
@@ -205,6 +214,7 @@ export interface FileRouteTypes {
   fileRoutesByFullPath: FileRoutesByFullPath
   fullPaths:
     | '/sign-in'
+    | '/api/notify'
     | '/'
     | '/account'
     | '/kanri'
@@ -226,6 +236,7 @@ export interface FileRouteTypes {
   fileRoutesByTo: FileRoutesByTo
   to:
     | '/sign-in'
+    | '/api/notify'
     | '/'
     | '/api/auth/$'
     | '/account/change-password'
@@ -246,6 +257,7 @@ export interface FileRouteTypes {
     | '/(app)'
     | '/(app)/(auth)'
     | '/(auth)/sign-in'
+    | '/api/notify'
     | '/(app)/'
     | '/(app)/(auth)/account'
     | '/(app)/(auth)/kanri'
@@ -269,6 +281,7 @@ export interface FileRouteTypes {
 export interface RootRouteChildren {
   appRouteRoute: typeof appRouteRouteWithChildren
   authSignInRoute: typeof authSignInRoute
+  ApiNotifyRoute: typeof ApiNotifyRoute
   ApiAuthSplatRoute: typeof ApiAuthSplatRoute
 }
 
@@ -288,6 +301,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof appIndexRouteImport
       parentRoute: typeof appRouteRoute
     }
+    '/api/notify': {
+      id: '/api/notify'
+      path: '/api/notify'
+      fullPath: '/api/notify'
+      preLoaderRoute: typeof ApiNotifyRouteImport
+      parentRoute: typeof rootRouteImport
+    }
     '/(auth)/sign-in': {
       id: '/(auth)/sign-in'
       path: '/sign-in'
@@ -513,6 +533,7 @@ const appRouteRouteWithChildren = appRouteRoute._addFileChildren(
 const rootRouteChildren: RootRouteChildren = {
   appRouteRoute: appRouteRouteWithChildren,
   authSignInRoute: authSignInRoute,
+  ApiNotifyRoute: ApiNotifyRoute,
   ApiAuthSplatRoute: ApiAuthSplatRoute,
 }
 export const routeTree = rootRouteImport
diff --git a/src/routes/(app)/(auth)/management/notifications.tsx b/src/routes/(app)/(auth)/management/notifications.tsx
index fb6f1be..4a39b63 100644
--- a/src/routes/(app)/(auth)/management/notifications.tsx
+++ b/src/routes/(app)/(auth)/management/notifications.tsx
@@ -10,6 +10,7 @@ import { useState } from 'react';
 
 export const Route = createFileRoute('/(app)/(auth)/management/notifications')({
   component: RouteComponent,
+  staticData: { breadcrumb: () => m.ui_label_notifications() },
 });
 
 function RouteComponent() {
diff --git a/src/routes/(app)/route.tsx b/src/routes/(app)/route.tsx
index f8fcaf7..5950146 100644
--- a/src/routes/(app)/route.tsx
+++ b/src/routes/(app)/route.tsx
@@ -2,9 +2,11 @@ import { AuthProvider } from '@/components/auth/auth-provider';
 import Header from '@/components/Header';
 import AppSidebar from '@/components/sidebar/app-sidebar';
 import { SidebarInset, SidebarProvider } from '@/components/ui/sidebar';
+import { useSSE } from '@/hooks/use-sse';
+import useNotificationStore from '@/store/useNotificationStore';
 import { Locale, setLocale } from '@paraglide/runtime';
-import { settingQueries } from '@service/queries';
-import { useQuery } from '@tanstack/react-query';
+import { notificationQueries, settingQueries } from '@service/queries';
+import { useQuery, useQueryClient } from '@tanstack/react-query';
 import { createFileRoute, Outlet } from '@tanstack/react-router';
 import { useEffect } from 'react';
 
@@ -13,14 +15,25 @@ export const Route = createFileRoute('/(app)')({
 });
 
 function RouteComponent() {
+  const setHasNew = useNotificationStore((state) => state.setHasNew);
   const { data: language } = useQuery(
     settingQueries.getCurrentUserLanguageSetting(),
   );
+  const queryClient = useQueryClient();
+
+  useSSE((data) => {
+    if (data.type === 'NEW_NOTIFICATION') {
+      setHasNew(true);
+      queryClient.invalidateQueries(notificationQueries.topFive());
+    }
+  });
+
   useEffect(() => {
     if (language) {
       setLocale(language as Locale);
     }
   }, [language]);
+
   return (
     <AuthProvider>
       <SidebarProvider>
diff --git a/src/routes/api/notify.ts b/src/routes/api/notify.ts
new file mode 100644
index 0000000..6b672eb
--- /dev/null
+++ b/src/routes/api/notify.ts
@@ -0,0 +1,48 @@
+import { auth } from '@/lib/auth';
+import { addClient, removeClient } from '@/lib/notification';
+import { createFileRoute } from '@tanstack/react-router';
+import { getRequestHeaders } from '@tanstack/react-start/server';
+
+export const Route = createFileRoute('/api/notify')({
+  server: {
+    handlers: {
+      GET: async ({ request }) => {
+        const headers = getRequestHeaders();
+        const session = await auth.api.getSession({ headers });
+
+        if (!session?.session.userId) {
+          return new Response('Unauthorized', { status: 401 });
+        }
+
+        const clientId = session.session.userId;
+
+        const stream = new ReadableStream({
+          start(controller) {
+            addClient(clientId, controller);
+
+            controller.enqueue(
+              `data: ${JSON.stringify({ type: `connected` })}\n\n`,
+            );
+
+            const heartbeat = setInterval(() => {
+              controller.enqueue(`: keepalive\n\n`);
+            }, 20000);
+
+            request.signal.addEventListener('abort', () => {
+              clearInterval(heartbeat);
+              removeClient(clientId, controller);
+            });
+          },
+        });
+
+        return new Response(stream, {
+          headers: {
+            'Content-Type': 'text/event-stream',
+            'Cache-Control': 'no-cache',
+            Connection: 'keep-alive',
+          },
+        });
+      },
+    },
+  },
+});
diff --git a/src/service/notify.api.ts b/src/service/notify.api.ts
index f3fd88c..2fc8456 100644
--- a/src/service/notify.api.ts
+++ b/src/service/notify.api.ts
@@ -1,4 +1,5 @@
 import { prisma } from '@/db';
+import { Notification } from '@/generated/prisma/client';
 import { parseError } from '@lib/errors';
 import { authMiddleware } from '@lib/middleware';
 import { createServerFn } from '@tanstack/react-start';
@@ -8,17 +9,30 @@ export const getTopFiveNotification = createServerFn({ method: 'GET' })
   .middleware([authMiddleware])
   .handler(async ({ context: { user } }) => {
     try {
-      const list = await prisma.notification.findMany({
-        where: {
-          userId: user.id,
-        },
-        orderBy: {
-          createdAt: 'asc',
-        },
-        take: 5,
-      });
+      const [list, total]: [Notification[], number] = await prisma.$transaction(
+        [
+          prisma.notification.findMany({
+            where: {
+              userId: user.id,
+            },
+            orderBy: {
+              createdAt: 'asc',
+            },
+            take: 5,
+          }),
+          prisma.notification.count({
+            where: {
+              userId: user.id,
+              readAt: null,
+            },
+          }),
+        ],
+      );
 
-      return list;
+      return {
+        list,
+        hasNewNotify: total > 0,
+      };
     } catch (error) {
       console.error(error);
       const { message, code } = parseError(error);
@@ -78,3 +92,24 @@ export const getAllNotifications = createServerFn({ method: 'GET' })
       throw { message, code };
     }
   });
+
+export const updateReadedNotification = createServerFn({ method: 'POST' })
+  .middleware([authMiddleware])
+  .handler(async ({ context: { user } }) => {
+    try {
+      const result = await prisma.notification.findMany({
+        where: { userId: user.id, readAt: null },
+      });
+
+      if (result.length > 0) {
+        await prisma.notification.updateMany({
+          where: { userId: user.id, readAt: null },
+          data: { readAt: new Date() },
+        });
+      }
+    } catch (error) {
+      console.error(error);
+      const { message, code } = parseError(error);
+      throw { message, code };
+    }
+  });
diff --git a/src/service/repository.ts b/src/service/repository.ts
index 5c9af90..8c1d809 100644
--- a/src/service/repository.ts
+++ b/src/service/repository.ts
@@ -1,5 +1,6 @@
 import { prisma } from '@/db';
 import { Audit, Notification, Setting } from '@/generated/prisma/client';
+import { sendToUser } from '@/lib/notification';
 
 type AdminSettingValue = Pick<Setting, 'id' | 'key' | 'value'>;
 
@@ -70,4 +71,10 @@ export const createNotification = async (
       ...data,
     },
   });
+
+  sendToUser(data.userId, {
+    type: 'NEW_NOTIFICATION',
+    title: data.title,
+    message: data.message,
+  });
 };
diff --git a/src/store/useNotificationStore.ts b/src/store/useNotificationStore.ts
new file mode 100644
index 0000000..2f1f2b4
--- /dev/null
+++ b/src/store/useNotificationStore.ts
@@ -0,0 +1,14 @@
+import { create } from 'zustand';
+
+type NotifyState = {
+  hasNew: boolean;
+  setHasNew: (hasNew: boolean) => void;
+};
+
+const useNotificationStore = create<NotifyState>((set) => ({
+  hasNew: false,
+  setHasNew: (hasNew: boolean) => set({ hasNew }),
+  toggleNew: () => set((state) => ({ hasNew: !state.hasNew })),
+}));
+
+export default useNotificationStore;