diff --git a/src/modules/link/link.controller.ts b/src/modules/link/link.controller.ts
index 439ff680..f505304f 100644
--- a/src/modules/link/link.controller.ts
+++ b/src/modules/link/link.controller.ts
@@ -23,7 +23,7 @@ import {
   BaseCrudModuleType,
 } from '~/transformers/crud-factor.transformer'
 
-import { AduitReasonDto, LinkDto } from './link.dto'
+import { AuditReasonDto, LinkDto } from './link.dto'
 import { LinkModel, LinkState } from './link.model'
 import { LinkService } from './link.service'
 
@@ -122,7 +122,7 @@ export class LinkController {
   @HttpCode(201)
   async sendReasonByEmail(
     @Param() params: MongoIdDto,
-    @Body() body: AduitReasonDto,
+    @Body() body: AuditReasonDto,
   ) {
     const { id } = params
     const { reason, state } = body
diff --git a/src/modules/link/link.dto.ts b/src/modules/link/link.dto.ts
index e7b3a798..4868c481 100644
--- a/src/modules/link/link.dto.ts
+++ b/src/modules/link/link.dto.ts
@@ -8,7 +8,7 @@ export class LinkDto extends LinkModel {
   author: string
 }
 
-export class AduitReasonDto {
+export class AuditReasonDto {
   @IsString({ message: '请输入审核理由' })
   reason: string
 
diff --git a/src/modules/link/link.service.ts b/src/modules/link/link.service.ts
index 4f40676e..85ae9479 100644
--- a/src/modules/link/link.service.ts
+++ b/src/modules/link/link.service.ts
@@ -34,21 +34,48 @@ export class LinkService {
     return this.linkModel
   }
   async applyForLink(model: LinkModel) {
-    try {
-      const doc = await this.model.create({
+    const existedDoc = await this.model
+      .findOne({
+        url: model.url,
+      })
+      .lean()
+
+    let nextModel: LinkModel
+    if (existedDoc) {
+      switch (existedDoc.state) {
+        case LinkState.Pass:
+        case LinkState.Audit:
+          throw new BadRequestException('请不要重复申请友链哦')
+
+        case LinkState.Banned:
+          throw new BadRequestException('您的友链已被禁用，请联系管理员')
+        case LinkState.Reject:
+        case LinkState.Outdate:
+          nextModel = await this.model
+            .findOneAndUpdate(
+              { _id: existedDoc._id },
+              {
+                $set: {
+                  state: LinkState.Audit,
+                },
+              },
+              { new: true },
+            )
+            .lean()
+      }
+    } else {
+      nextModel = await this.model.create({
         ...model,
         type: LinkType.Friend,
         state: LinkState.Audit,
       })
-
-      process.nextTick(() => {
-        this.eventManager.broadcast(BusinessEvents.LINK_APPLY, doc, {
-          scope: EventScope.TO_SYSTEM_ADMIN,
-        })
-      })
-    } catch (err) {
-      throw new BadRequestException('请不要重复申请友链哦')
     }
+
+    process.nextTick(() => {
+      this.eventManager.broadcast(BusinessEvents.LINK_APPLY, nextModel, {
+        scope: EventScope.TO_SYSTEM_ADMIN,
+      })
+    })
   }
 
   async approveLink(id: string) {
diff --git a/test/mock/modules/user.mock.ts b/test/mock/modules/user.mock.ts
new file mode 100644
index 00000000..d6d326c6
--- /dev/null
+++ b/test/mock/modules/user.mock.ts
@@ -0,0 +1,8 @@
+import { defineProvider } from 'test/helper/defineProvider'
+
+import { UserService } from '~/modules/user/user.service'
+
+export const userProvider = defineProvider({
+  provide: UserService,
+  useValue: {},
+})
diff --git a/test/src/modules/link/link.controller.e2e-spec.ts b/test/src/modules/link/link.controller.e2e-spec.ts
new file mode 100644
index 00000000..9221c899
--- /dev/null
+++ b/test/src/modules/link/link.controller.e2e-spec.ts
@@ -0,0 +1,88 @@
+import { createE2EApp } from 'test/helper/create-e2e-app'
+import { gatewayProviders } from 'test/mock/modules/gateway.mock'
+import { userProvider } from 'test/mock/modules/user.mock'
+
+import { EventEmitter2 } from '@nestjs/event-emitter'
+import { ReturnModelType } from '@typegoose/typegoose'
+
+import { OptionModel } from '~/modules/configs/configs.model'
+import { ConfigsService } from '~/modules/configs/configs.service'
+import {
+  LinkController,
+  LinkControllerCrud,
+} from '~/modules/link/link.controller'
+import { LinkModel, LinkState } from '~/modules/link/link.model'
+import { LinkService } from '~/modules/link/link.service'
+import { AssetService } from '~/processors/helper/helper.asset.service'
+import { EmailService } from '~/processors/helper/helper.email.service'
+import { EventManagerService } from '~/processors/helper/helper.event.service'
+import { HttpService } from '~/processors/helper/helper.http.service'
+import { SubPubBridgeService } from '~/processors/redis/subpub.service'
+
+describe('Test LinkController(E2E)', () => {
+  const proxy = createE2EApp({
+    controllers: [LinkController, LinkControllerCrud],
+    models: [LinkModel, OptionModel],
+    providers: [
+      ...gatewayProviders,
+      LinkService,
+      ConfigsService,
+      EmailService,
+      HttpService,
+      EventManagerService,
+      userProvider,
+      SubPubBridgeService,
+      AssetService,
+      EventEmitter2,
+    ],
+    async pourData(modelMap) {
+      const linkModel = modelMap.get(LinkModel)
+
+      ;(linkModel.model as ReturnModelType<typeof LinkModel>).create({
+        url: 'https://innei.ren',
+        name: 'innei',
+        avatar: 'https://innei.ren/avatar.png',
+        description: 'innei',
+        state: LinkState.Outdate,
+      })
+    },
+  })
+
+  it('should change state to audit', async () => {
+    const app = proxy.app
+    const res = await app.inject({
+      method: 'post',
+      url: '/links/audit',
+      payload: {
+        url: 'https://innei.ren',
+        name: 'innnnn',
+        author: 'innei',
+        avatar: 'https://innei.ren/avatar.png',
+        description: 'innei',
+      },
+    })
+    expect(res.statusCode).toBe(204)
+  })
+
+  it('apply link repeat should throw', async () => {
+    const app = proxy.app
+    const res = await app.inject({
+      method: 'post',
+      url: '/links/audit',
+      payload: {
+        url: 'https://innei.ren',
+        name: 'innnnn',
+        author: 'innei',
+        avatar: 'https://innei.ren/avatar.png',
+        description: 'innei',
+      },
+    })
+    expect(res.json()).toMatchInlineSnapshot(`
+          {
+            "error": "Bad Request",
+            "message": "请不要重复申请友链哦",
+            "statusCode": 400,
+          }
+        `)
+  })
+})