diff --git a/apps/cli/src/http/index.ts b/apps/cli/src/http/index.ts
index 42622f1f..d38b0dd1 100644
--- a/apps/cli/src/http/index.ts
+++ b/apps/cli/src/http/index.ts
@@ -221,6 +221,7 @@ export async function startHttpServer(options?: HttpServerOptions): Promise<{
     aiContext: {
       aiDataDir,
       aiChatManager,
+      aiMemoryService,
       assistantManager,
       skillManagerCore,
       llmConfigStore,
diff --git a/apps/cli/src/http/routes/web/index.ts b/apps/cli/src/http/routes/web/index.ts
index 0cebdf85..83c6c79a 100644
--- a/apps/cli/src/http/routes/web/index.ts
+++ b/apps/cli/src/http/routes/web/index.ts
@@ -24,6 +24,7 @@ import type { PathProvider } from '@openchatlab/core'
 import type {
   DatabaseManager,
   AIChatManager,
+  AIMemoryService,
   AssistantManager,
   SkillManagerCore,
   LLMConfigStore,
@@ -59,6 +60,7 @@ import { getServerAiLogger } from '../../../ai/logger'
 export interface AiContextOptions {
   aiDataDir: string
   aiChatManager: AIChatManager
+  aiMemoryService: AIMemoryService
   assistantManager: AssistantManager
   skillManagerCore: SkillManagerCore
   llmConfigStore: LLMConfigStore
@@ -177,6 +179,7 @@ export function registerWebRoutes(
       ...(ai && {
         aiDataDir: ai.aiDataDir,
         aiChatManager: ai.aiChatManager,
+        aiMemoryService: ai.aiMemoryService,
         assistantManager: ai.assistantManager,
         skillManagerCore: ai.skillManagerCore,
         llmConfigStore: ai.llmConfigStore,
diff --git a/apps/desktop/main/internal-api/server.ts b/apps/desktop/main/internal-api/server.ts
index 707f90d7..2b765bb2 100644
--- a/apps/desktop/main/internal-api/server.ts
+++ b/apps/desktop/main/internal-api/server.ts
@@ -193,6 +193,7 @@ export async function startInternalServer(
       streamImport: electronStreamImport,
       aiDataDir,
       aiChatManager: getAIChatManager(),
+      aiMemoryService: newAIMemoryService,
       assistantManager: getAssistantManager(),
       skillManagerCore: getSkillManager(),
       llmConfigStore,
diff --git a/packages/http-routes/src/context/ai.ts b/packages/http-routes/src/context/ai.ts
index 8ea0619b..b9dd7df7 100644
--- a/packages/http-routes/src/context/ai.ts
+++ b/packages/http-routes/src/context/ai.ts
@@ -2,6 +2,7 @@ import type { AuthProfile } from '@openchatlab/config'
 import type {
   AgentStreamChunk,
   AIChatManager,
+  AIMemoryService,
   AssistantManager,
   CustomModelStore,
   CustomProviderStore,
@@ -60,6 +61,7 @@ export interface AgentStreamRequest {
 export interface AiRouteContext {
   aiDataDir?: string
   aiChatManager?: AIChatManager
+  aiMemoryService?: AIMemoryService
   assistantManager?: AssistantManager
   skillManagerCore?: SkillManagerCore
   llmConfigStore?: LLMConfigStore
diff --git a/packages/http-routes/src/routes/web/ai-memories.test.ts b/packages/http-routes/src/routes/web/ai-memories.test.ts
new file mode 100644
index 00000000..77647deb
--- /dev/null
+++ b/packages/http-routes/src/routes/web/ai-memories.test.ts
@@ -0,0 +1,208 @@
+import assert from 'node:assert/strict'
+import { mkdtempSync, rmSync } from 'node:fs'
+import { tmpdir } from 'node:os'
+import { join } from 'node:path'
+import { describe, it } from 'node:test'
+import Fastify from 'fastify'
+import { AIMemoryService } from '@openchatlab/node-runtime'
+import { registerAiMemoryRoutes } from './ai-memories'
+
+const sqliteNativeBinding = process.env.CHATLAB_TEST_SQLITE_NATIVE_BINDING
+
+function createFixture() {
+  const dir = mkdtempSync(join(tmpdir(), 'chatlab-ai-memory-routes-'))
+  const service = new AIMemoryService(dir, { nativeBinding: sqliteNativeBinding })
+  const app = Fastify()
+  registerAiMemoryRoutes(app, { aiMemoryService: service })
+
+  return {
+    app,
+    service,
+    async close() {
+      await app.close()
+      service.close()
+      try {
+        rmSync(dir, { recursive: true, force: true, maxRetries: 5, retryDelay: 50 })
+      } catch {
+        // Windows can hold SQLite WAL handles briefly after close; temp cleanup is best-effort.
+      }
+    },
+  }
+}
+
+describe('AI memory routes', () => {
+  it('creates user memories and lists exact scopes', async () => {
+    const fixture = createFixture()
+    try {
+      const globalResponse = await fixture.app.inject({
+        method: 'POST',
+        url: '/_web/ai/memories',
+        payload: {
+          scopeType: 'global',
+          scopeId: null,
+          content: '  最近默认按 90 天  ',
+          sourceType: 'ai',
+        },
+      })
+      assert.equal(globalResponse.statusCode, 200)
+      assert.equal(globalResponse.json().content, '最近默认按 90 天')
+      assert.equal(globalResponse.json().sourceType, 'user')
+
+      await fixture.app.inject({
+        method: 'POST',
+        url: '/_web/ai/memories',
+        payload: { scopeType: 'contact', scopeId: 'contact-a', content: '大学同学' },
+      })
+      await fixture.app.inject({
+        method: 'POST',
+        url: '/_web/ai/memories',
+        payload: { scopeType: 'contact', scopeId: 'contact-b', content: '前同事' },
+      })
+
+      const all = await fixture.app.inject({ method: 'GET', url: '/_web/ai/memories' })
+      assert.equal(all.statusCode, 200)
+      assert.equal(all.json().length, 3)
+
+      const filtered = await fixture.app.inject({
+        method: 'GET',
+        url: '/_web/ai/memories?scopeType=contact&scopeId=contact-a',
+      })
+      assert.equal(filtered.statusCode, 200)
+      assert.deepEqual(
+        filtered.json().map((entry: { content: string }) => entry.content),
+        ['大学同学']
+      )
+    } finally {
+      await fixture.close()
+    }
+  })
+
+  it('updates, deletes, and clears memories without letting clients spoof the source', async () => {
+    const fixture = createFixture()
+    try {
+      const created = fixture.service.create({
+        scopeType: 'group',
+        scopeId: 'group-a',
+        content: '旧结论',
+        sourceType: 'ai',
+        sourceAIChatId: 'chat-a',
+      })
+      fixture.service.create({
+        scopeType: 'group',
+        scopeId: 'group-b',
+        content: '另一个群',
+        sourceType: 'user',
+      })
+
+      const updated = await fixture.app.inject({
+        method: 'PUT',
+        url: `/_web/ai/memories/${created.id}`,
+        payload: { content: '用户确认后的结论', sourceType: 'ai' },
+      })
+      assert.equal(updated.statusCode, 200)
+      assert.deepEqual(
+        {
+          scopeType: updated.json().scopeType,
+          scopeId: updated.json().scopeId,
+          content: updated.json().content,
+          sourceType: updated.json().sourceType,
+          sourceAIChatId: updated.json().sourceAIChatId,
+        },
+        {
+          scopeType: 'group',
+          scopeId: 'group-a',
+          content: '用户确认后的结论',
+          sourceType: 'user',
+          sourceAIChatId: null,
+        }
+      )
+
+      const cleared = await fixture.app.inject({
+        method: 'POST',
+        url: '/_web/ai/memories/clear',
+        payload: { scopeType: 'group', scopeId: 'group-a' },
+      })
+      assert.equal(cleared.statusCode, 200)
+      assert.deepEqual(cleared.json(), { success: true, cleared: 1 })
+      assert.deepEqual(
+        fixture.service.list().map((entry) => entry.scopeId),
+        ['group-b']
+      )
+
+      const remainingId = fixture.service.list()[0]?.id
+      assert.ok(remainingId)
+      const deleted = await fixture.app.inject({ method: 'DELETE', url: `/_web/ai/memories/${remainingId}` })
+      assert.equal(deleted.statusCode, 200)
+      assert.deepEqual(deleted.json(), { success: true })
+
+      const missing = await fixture.app.inject({ method: 'DELETE', url: '/_web/ai/memories/missing' })
+      assert.equal(missing.statusCode, 404)
+    } finally {
+      await fixture.close()
+    }
+  })
+
+  it('requires explicit scope or all confirmation before clearing', async () => {
+    const fixture = createFixture()
+    try {
+      fixture.service.create({ scopeType: 'global', scopeId: null, content: '先给结论', sourceType: 'user' })
+      fixture.service.create({
+        scopeType: 'contact',
+        scopeId: 'contact-a',
+        content: '大学同学',
+        sourceType: 'user',
+      })
+
+      const implicit = await fixture.app.inject({ method: 'POST', url: '/_web/ai/memories/clear', payload: {} })
+      assert.equal(implicit.statusCode, 400)
+      assert.equal(fixture.service.list().length, 2)
+
+      const ambiguous = await fixture.app.inject({
+        method: 'POST',
+        url: '/_web/ai/memories/clear',
+        payload: { all: true, scopeType: 'global' },
+      })
+      assert.equal(ambiguous.statusCode, 400)
+      assert.equal(fixture.service.list().length, 2)
+
+      const explicit = await fixture.app.inject({
+        method: 'POST',
+        url: '/_web/ai/memories/clear',
+        payload: { all: true },
+      })
+      assert.equal(explicit.statusCode, 200)
+      assert.deepEqual(explicit.json(), { success: true, cleared: 2 })
+      assert.deepEqual(fixture.service.list(), [])
+    } finally {
+      await fixture.close()
+    }
+  })
+
+  it('rejects invalid scope and content instead of changing stored memories', async () => {
+    const fixture = createFixture()
+    try {
+      const invalidScope = await fixture.app.inject({
+        method: 'POST',
+        url: '/_web/ai/memories',
+        payload: { scopeType: 'contact', content: 'missing id' },
+      })
+      assert.equal(invalidScope.statusCode, 400)
+
+      const invalidQuery = await fixture.app.inject({
+        method: 'GET',
+        url: '/_web/ai/memories?scopeId=contact-a',
+      })
+      assert.equal(invalidQuery.statusCode, 400)
+
+      const invalidContent = await fixture.app.inject({
+        method: 'POST',
+        url: '/_web/ai/memories',
+        payload: { scopeType: 'global', content: '   ' },
+      })
+      assert.equal(invalidContent.statusCode, 400)
+      assert.deepEqual(fixture.service.list(), [])
+    } finally {
+      await fixture.close()
+    }
+  })
+})
diff --git a/packages/http-routes/src/routes/web/ai-memories.ts b/packages/http-routes/src/routes/web/ai-memories.ts
new file mode 100644
index 00000000..c4436b62
--- /dev/null
+++ b/packages/http-routes/src/routes/web/ai-memories.ts
@@ -0,0 +1,111 @@
+import type { FastifyInstance, FastifyReply } from 'fastify'
+import type { AIMemoryScope, AIMemoryScopeType } from '@openchatlab/shared-types'
+import type { AiRouteContext } from '../../context/ai'
+
+type AiMemoryRouteContext = Pick<AiRouteContext, 'aiMemoryService'>
+
+interface MemoryScopeInput {
+  scopeType?: string
+  scopeId?: string | null
+}
+
+function parseScope(input: MemoryScopeInput): AIMemoryScope {
+  const scopeType = input.scopeType
+  if (scopeType !== 'global' && scopeType !== 'contact' && scopeType !== 'group') {
+    throw new Error('scopeType must be global, contact, or group')
+  }
+
+  return {
+    scopeType: scopeType as AIMemoryScopeType,
+    scopeId: typeof input.scopeId === 'string' ? input.scopeId : null,
+  }
+}
+
+function sendBadRequest(reply: FastifyReply, error: unknown) {
+  return reply.code(400).send({ error: error instanceof Error ? error.message : String(error) })
+}
+
+export function registerAiMemoryRoutes(server: FastifyInstance, ctx: AiMemoryRouteContext): void {
+  const memoryService = ctx.aiMemoryService
+  if (!memoryService) return
+
+  server.get<{
+    Querystring: MemoryScopeInput
+  }>('/_web/ai/memories', async (request, reply) => {
+    try {
+      const { scopeType, scopeId } = request.query
+      if (!scopeType) {
+        if (scopeId != null) throw new Error('scopeType is required when scopeId is provided')
+        return memoryService.list()
+      }
+      return memoryService.list(parseScope({ scopeType, scopeId }))
+    } catch (error) {
+      return sendBadRequest(reply, error)
+    }
+  })
+
+  server.post<{
+    Body: MemoryScopeInput & { content?: string; sourceType?: string }
+  }>('/_web/ai/memories', async (request, reply) => {
+    try {
+      const scope = parseScope(request.body ?? {})
+      return memoryService.create({
+        ...scope,
+        content: request.body?.content ?? '',
+        sourceType: 'user',
+        sourceAIChatId: null,
+        sourceMessageId: null,
+      })
+    } catch (error) {
+      return sendBadRequest(reply, error)
+    }
+  })
+
+  server.put<{
+    Params: { id: string }
+    Body: { content?: string; sourceType?: string }
+  }>('/_web/ai/memories/:id', async (request, reply) => {
+    if (!memoryService.get(request.params.id)) {
+      return reply.code(404).send({ error: 'AI memory not found' })
+    }
+    try {
+      return memoryService.update(request.params.id, {
+        content: request.body?.content ?? '',
+        sourceType: 'user',
+        sourceAIChatId: null,
+        sourceMessageId: null,
+      })
+    } catch (error) {
+      return sendBadRequest(reply, error)
+    }
+  })
+
+  server.delete<{
+    Params: { id: string }
+  }>('/_web/ai/memories/:id', async (request, reply) => {
+    if (!memoryService.forget(request.params.id)) {
+      return reply.code(404).send({ error: 'AI memory not found' })
+    }
+    return { success: true }
+  })
+
+  server.post<{
+    Body: MemoryScopeInput & { all?: boolean }
+  }>('/_web/ai/memories/clear', async (request, reply) => {
+    const { all, scopeType, scopeId } = request.body ?? {}
+    if (all === true) {
+      if (scopeType || scopeId != null) {
+        return reply.code(400).send({ error: 'all cannot be combined with a scope' })
+      }
+      return { success: true, cleared: memoryService.clear() }
+    }
+    if (!scopeType) {
+      return reply.code(400).send({ error: 'A scope or all: true is required' })
+    }
+    try {
+      return { success: true, cleared: memoryService.clear(parseScope({ scopeType, scopeId })) }
+    } catch (error) {
+      return sendBadRequest(reply, error)
+    }
+  })
+}
diff --git a/packages/http-routes/src/routes/web/register-ai.test.ts b/packages/http-routes/src/routes/web/register-ai.test.ts
index ec602d17..0b55d298 100644
--- a/packages/http-routes/src/routes/web/register-ai.test.ts
+++ b/packages/http-routes/src/routes/web/register-ai.test.ts
@@ -4,6 +4,7 @@ import Fastify from 'fastify'
 import type { PathProvider } from '@openchatlab/core'
 import type {
   AIChatManager,
+  AIMemoryService,
   AssistantManager,
   CustomModelStore,
   CustomProviderStore,
@@ -28,6 +29,7 @@ function completeContext(): AiRoutesContext {
     ...baseContext(),
     aiDataDir: '/tmp/chatlab-ai-route-test',
     aiChatManager: {} as AIChatManager,
+    aiMemoryService: {} as AIMemoryService,
     assistantManager: {} as AssistantManager,
     skillManagerCore: {} as SkillManagerCore,
     llmConfigStore: {} as LLMConfigStore,
@@ -42,6 +44,7 @@ test('registerAiRoutes identifies each missing required dependency', () => {
   const requiredDependencies = [
     'aiDataDir',
     'aiChatManager',
+    'aiMemoryService',
     'assistantManager',
     'skillManagerCore',
     'llmConfigStore',
@@ -72,6 +75,9 @@ test('registerAiRoutes keeps static and graceful fallback routes without AI mana
   const assistants = await app.inject({ method: 'GET', url: '/_web/ai/assistants' })
   assert.equal(assistants.statusCode, 404)
 
+  const memories = await app.inject({ method: 'GET', url: '/_web/ai/memories' })
+  assert.equal(memories.statusCode, 404)
+
   const semanticStatus = await app.inject({ method: 'GET', url: '/_web/ai/semantic-index/status' })
   assert.equal(semanticStatus.statusCode, 200)
   assert.deepEqual(semanticStatus.json(), { status: null })
diff --git a/packages/http-routes/src/routes/web/register-ai.ts b/packages/http-routes/src/routes/web/register-ai.ts
index ab1ef9b1..4801eeb7 100644
--- a/packages/http-routes/src/routes/web/register-ai.ts
+++ b/packages/http-routes/src/routes/web/register-ai.ts
@@ -9,6 +9,7 @@ import { registerAiChatTopicRoutes } from './ai-chat-topics'
 import { registerAiLlmStreamRoutes } from './ai-llm-stream'
 import { registerAiLlmRoutes } from './ai-llm'
 import { registerAiLogRoutes } from './ai-logs'
+import { registerAiMemoryRoutes } from './ai-memories'
 import { registerSemanticIndexRoutes } from './ai-semantic-index'
 import { registerAiSkillRoutes } from './ai-skills'
 import { registerAiSummaryRoutes } from './ai-summaries'
@@ -26,6 +27,7 @@ export interface AiRouteOptions {
 const REQUIRED_AI_DEPENDENCIES = [
   'aiDataDir',
   'aiChatManager',
+  'aiMemoryService',
   'assistantManager',
   'skillManagerCore',
   'llmConfigStore',
@@ -52,6 +54,7 @@ export function registerAiRoutes(server: FastifyInstance, ctx: AiRoutesContext,
   registerAiAgentStreamRoutes(server, ctx)
   registerAiToolRoutes(server, ctx)
   registerAiChatRoutes(server, ctx)
+  registerAiMemoryRoutes(server, ctx)
   registerAiChatTopicRoutes(server, ctx)
   registerAiSummaryRoutes(server, ctx)
   registerAiLogRoutes(server, ctx)
diff --git a/src/services/ai/fetch.ts b/src/services/ai/fetch.ts
index 18e3c95e..60fb1205 100644
--- a/src/services/ai/fetch.ts
+++ b/src/services/ai/fetch.ts
@@ -20,6 +20,10 @@ import type {
   ToolCatalogEntry,
   ToolExecuteResult,
   DesensitizeRule,
+  AIMemoryEntry,
+  AIMemoryScope,
+  CreateUserAIMemoryInput,
+  ClearAIMemoriesInput,
 } from './types'
 import { get, post, put, del, fetchWithAuth } from '../utils/http'
 
@@ -59,6 +63,30 @@ export class FetchAIAdapter implements AIAdapter {
     return del<boolean>(`/ai/chats/${aiChatId}`)
   }
 
+  // ===== 长期记忆 =====
+  async getAIMemories(scope?: AIMemoryScope): Promise<AIMemoryEntry[]> {
+    if (!scope) return get<AIMemoryEntry[]>('/ai/memories')
+    const params = new URLSearchParams({ scopeType: scope.scopeType })
+    if (scope.scopeId) params.set('scopeId', scope.scopeId)
+    return get<AIMemoryEntry[]>(`/ai/memories?${params.toString()}`)
+  }
+
+  async createAIMemory(input: CreateUserAIMemoryInput): Promise<AIMemoryEntry> {
+    return post<AIMemoryEntry>('/ai/memories', input)
+  }
+
+  async updateAIMemory(id: string, content: string): Promise<AIMemoryEntry> {
+    return put<AIMemoryEntry>(`/ai/memories/${id}`, { content })
+  }
+
+  async deleteAIMemory(id: string): Promise<{ success: boolean }> {
+    return del<{ success: boolean }>(`/ai/memories/${id}`)
+  }
+
+  async clearAIMemories(input: ClearAIMemoriesInput): Promise<{ success: boolean; cleared: number }> {
+    return post<{ success: boolean; cleared: number }>('/ai/memories/clear', input)
+  }
+
   // ===== 消息 =====
   async getMessages(aiChatId: string): Promise<AIMessage[]> {
     return get<AIMessage[]>(`/ai/chats/${aiChatId}/messages`)
diff --git a/src/services/ai/types.ts b/src/services/ai/types.ts
index 8cf89099..cc8cb449 100644
--- a/src/services/ai/types.ts
+++ b/src/services/ai/types.ts
@@ -1,6 +1,6 @@
 import type { TimeFilter } from '@/types/base'
 import type { ChartPayload, ChatEvidencePayload } from '@openchatlab/core'
-import type { AIEntityRef, CrossChatEvidencePayload } from '@openchatlab/shared-types'
+import type { AIEntityRef, AIMemoryEntry, AIMemoryScope, CrossChatEvidencePayload } from '@openchatlab/shared-types'
 import type { PlanContentBlock } from './planBlocks'
 
 export interface AIChat {
@@ -14,7 +14,10 @@ export interface AIChat {
   updatedAt: number
 }
 
-export type { AIEntityRef } from '@openchatlab/shared-types'
+export type { AIEntityRef, AIMemoryEntry, AIMemoryScope } from '@openchatlab/shared-types'
+
+export type CreateUserAIMemoryInput = AIMemoryScope & { content: string }
+export type ClearAIMemoriesInput = AIMemoryScope | { all: true }
 
 export type ContentBlock =
   | { type: 'text'; text: string; processDurationMs?: number }
@@ -129,6 +132,13 @@ export interface AIAdapter {
   updateAIChatTitle(aiChatId: string, title: string): Promise<boolean>
   deleteAIChat(aiChatId: string): Promise<boolean>
 
+  // ===== 长期记忆 =====
+  getAIMemories(scope?: AIMemoryScope): Promise<AIMemoryEntry[]>
+  createAIMemory(input: CreateUserAIMemoryInput): Promise<AIMemoryEntry>
+  updateAIMemory(id: string, content: string): Promise<AIMemoryEntry>
+  deleteAIMemory(id: string): Promise<{ success: boolean }>
+  clearAIMemories(input: ClearAIMemoriesInput): Promise<{ success: boolean; cleared: number }>
+
   // ===== 消息 =====
   getMessages(aiChatId: string): Promise<AIMessage[]>
   addMessage(