diff --git a/src/notifications/outbox/notification-outbox.service.ts b/src/notifications/outbox/notification-outbox.service.ts
index ef2d6db..1be8b21 100644
--- a/src/notifications/outbox/notification-outbox.service.ts
+++ b/src/notifications/outbox/notification-outbox.service.ts
@@ -147,6 +147,22 @@ export class NotificationOutboxService {
     return messages.map((message) => this.toSummary(message));
   }
 
+  async getMessage(
+    id: string,
+  ): Promise<NotificationOutboxMessage | undefined> {
+    const prisma = this.databaseClient();
+
+    if (!prisma) {
+      return this.memoryMessages.find((message) => message.id === id);
+    }
+
+    const message = await prisma.outboxMessage.findUnique({
+      where: { id },
+    });
+
+    return message ? this.toSummary(message) : undefined;
+  }
+
   async listRetryableMessages(
     input: ListRetryableNotificationOutboxInput,
   ): Promise<NotificationOutboxMessage[]> {
diff --git a/src/notifications/wecom/notification-outbox-manual-retry.controller.ts b/src/notifications/wecom/notification-outbox-manual-retry.controller.ts
new file mode 100644
index 0000000..d969fdb
--- /dev/null
+++ b/src/notifications/wecom/notification-outbox-manual-retry.controller.ts
@@ -0,0 +1,32 @@
+/**
+ * 通知 outbox 手动重发入口只允许超级管理员触发真实 provider 投递。
+ */
+import { Controller, Param, Post, UseGuards } from '@nestjs/common';
+import { ApiOkResponse, ApiTags } from '@nestjs/swagger';
+import { AdminOnlyMessage } from '../../auth/admin-only-message.decorator';
+import { AuthGuard } from '../../auth/auth.guard';
+import { AuthenticatedUser } from '../../auth/auth.types';
+import { CurrentUser } from '../../auth/current-user.decorator';
+import { PasswordChangeGuard } from '../../auth/password-change.guard';
+import { SuperAdminGuard } from '../../auth/super-admin.guard';
+import { NotificationOutboxMessage } from '../outbox/notification-outbox.types';
+import { NotificationOutboxManualRetryService } from './notification-outbox-manual-retry.service';
+
+@ApiTags('通知 outbox')
+@Controller('notification-outbox')
+@UseGuards(AuthGuard, PasswordChangeGuard, SuperAdminGuard)
+@AdminOnlyMessage('无权限操作通知 outbox')
+export class NotificationOutboxManualRetryController {
+  constructor(
+    private readonly manualRetryService: NotificationOutboxManualRetryService,
+  ) {}
+
+  @Post(':id/retry')
+  @ApiOkResponse({ description: '手动重发失败或已终止的通知 outbox。' })
+  async retryMessage(
+    @Param('id') id: string,
+    @CurrentUser() user: AuthenticatedUser,
+  ): Promise<NotificationOutboxMessage> {
+    return this.manualRetryService.retryMessage(id, user);
+  }
+}
diff --git a/src/notifications/wecom/notification-outbox-manual-retry.service.ts b/src/notifications/wecom/notification-outbox-manual-retry.service.ts
new file mode 100644
index 0000000..48c34ae
--- /dev/null
+++ b/src/notifications/wecom/notification-outbox-manual-retry.service.ts
@@ -0,0 +1,99 @@
+/**
+ * 通知 outbox 手动重发服务用于管理员在配置 webhook 后补投历史失败消息。
+ */
+import { Injectable } from '@nestjs/common';
+import { AuditService } from '../../audit/audit.service';
+import { AuthenticatedUser } from '../../auth/auth.types';
+import { AppError } from '../../common/errors/app-error';
+import { redactSensitive } from '../../common/security/redact-sensitive';
+import { NotificationOutboxService } from '../outbox/notification-outbox.service';
+import { NotificationOutboxMessage } from '../outbox/notification-outbox.types';
+import { DeployNotificationService } from './deploy-notification.service';
+
+@Injectable()
+export class NotificationOutboxManualRetryService {
+  constructor(
+    private readonly notificationOutboxService: NotificationOutboxService,
+    private readonly deployNotificationService: DeployNotificationService,
+    private readonly auditService: AuditService,
+  ) {}
+
+  async retryMessage(
+    id: string,
+    operator: AuthenticatedUser,
+  ): Promise<NotificationOutboxMessage> {
+    const message = await this.notificationOutboxService.getMessage(id);
+
+    if (!message) {
+      throw new AppError('RESOURCE_NOT_FOUND', '通知 outbox 记录不存在', 404, {
+        id,
+      });
+    }
+
+    if (message.status !== 'failed' && message.status !== 'dead') {
+      throw new AppError(
+        'VALIDATION_FAILED',
+        '只有失败或已终止的通知 outbox 可以手动重发',
+        400,
+        {
+          id,
+          status: message.status,
+        },
+      );
+    }
+
+    try {
+      const result =
+        await this.deployNotificationService.retryOutboxMessage(message);
+      const updated =
+        (await this.notificationOutboxService.getMessage(id)) ?? message;
+
+      await this.auditService.record({
+        action: `NOTIFICATION_OUTBOX_MANUAL_RETRY_${result.status.toUpperCase()}`,
+        resourceType: 'notification_outbox',
+        resourceId: id,
+        actorId: operator.id,
+        actorName: operator.account,
+        before: this.auditSnapshot(message),
+        after: {
+          ...this.auditSnapshot(updated),
+          channel: result.channel,
+          reason: result.reason,
+        },
+      });
+
+      return updated;
+    } catch (error) {
+      const messageText =
+        error instanceof Error ? error.message : '通知 outbox 手动重发失败';
+
+      await this.auditService.record({
+        action: 'NOTIFICATION_OUTBOX_MANUAL_RETRY_FAILED',
+        resourceType: 'notification_outbox',
+        resourceId: id,
+        actorId: operator.id,
+        actorName: operator.account,
+        before: this.auditSnapshot(message),
+        after: {
+          message: redactSensitive({ message: messageText }).message,
+        },
+      });
+
+      throw error;
+    }
+  }
+
+  private auditSnapshot(
+    message: NotificationOutboxMessage,
+  ): Record<string, unknown> {
+    return {
+      status: message.status,
+      attemptCount: message.attemptCount,
+      nextAttemptAt: message.nextAttemptAt,
+      lastError: message.lastError,
+      channel: message.channel,
+      template: message.template,
+      deployRunId: message.deployRunId,
+    };
+  }
+}
diff --git a/src/notifications/wecom/wecom.module.ts b/src/notifications/wecom/wecom.module.ts
index bbef3f2..d0a6a5b 100644
--- a/src/notifications/wecom/wecom.module.ts
+++ b/src/notifications/wecom/wecom.module.ts
@@ -4,14 +4,18 @@
 import { Module } from '@nestjs/common';
 import { NotificationOutboxModule } from '../outbox/notification-outbox.module';
 import { DeployNotificationService } from './deploy-notification.service';
+import { NotificationOutboxManualRetryController } from './notification-outbox-manual-retry.controller';
+import { NotificationOutboxManualRetryService } from './notification-outbox-manual-retry.service';
 import { NotificationOutboxRetryService } from './notification-outbox-retry.service';
 import { WeComClient } from './wecom.client';
 
 @Module({
   imports: [NotificationOutboxModule],
+  controllers: [NotificationOutboxManualRetryController],
   providers: [
     WeComClient,
     DeployNotificationService,
+    NotificationOutboxManualRetryService,
     NotificationOutboxRetryService,
   ],
   exports: [WeComClient, DeployNotificationService],