diff --git a/.gitignore b/.gitignore
index 54fd942..50c6dc8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,6 +21,7 @@ output/
 # Prisma
 backend/prisma/dev.db
 backend/prisma/dev.db-journal
+backend/prisma/generated/
 
 # 其他
 frontend/.output/
diff --git a/backend/bin/linux/BaiduPCS-Go b/backend/bin/linux/BaiduPCS-Go
new file mode 100644
index 0000000..5c3f131
Binary files /dev/null and b/backend/bin/linux/BaiduPCS-Go differ
diff --git a/backend/bin/windows/BaiduPCS-Go.exe b/backend/bin/windows/BaiduPCS-Go.exe
new file mode 100644
index 0000000..25d48c9
Binary files /dev/null and b/backend/bin/windows/BaiduPCS-Go.exe differ
diff --git a/backend/prisma/schema.prisma b/backend/prisma/schema.prisma
index 18b25de..9efdefa 100644
--- a/backend/prisma/schema.prisma
+++ b/backend/prisma/schema.prisma
@@ -3,6 +3,7 @@
 
 generator client {
   provider = "prisma-client-js"
+  output   = "./generated/client"
 }
 
 datasource db {
@@ -10,55 +11,107 @@ datasource db {
   url      = env("DATABASE_URL")
 }
 
+/// 网盘类型枚举
+enum DriveType {
+  /// 百度网盘
+  BAIDU
+  /// 阿里云盘
+  ALIYUN
+  /// 其他网盘类型可以在这里添加
+}
+
+/// 网盘账号信息表
 model Account {
+  /// 账号ID
   id               Int               @id @default(autoincrement())
-  driveType        String            @unique
+  /// 网盘类型
+  driveType        DriveType
+  /// 账号标识符（如：用户名、邮箱等）
   accountIdentifier String
+  /// 账号凭证（密码）
   credentials      String            @db.Text
+  /// 账号状态（active: 活跃, inactive: 未激活, blocked: 被封禁）
   status           String            @default("active")
+  /// 最后检查时间
   lastChecked      DateTime?
+  /// 创建时间
   createdAt        DateTime          @default(now())
+  /// 更新时间
   updatedAt        DateTime          @updatedAt
+  /// 转码记录关联
   transcodeRecords TranscodeRecord[]
+  /// 活动日志关联
   activityLogs     ActivityLog[]
 }
 
+/// 转码记录表
 model TranscodeRecord {
+  /// 记录ID
   id                Int       @id @default(autoincrement())
+  /// 项目ID
   itemId            String
+  /// 源文件链接
   sourceLink        String    @db.Text
-  driveType         String
+  /// 网盘类型
+  driveType         DriveType
+  /// 管理的账号ID
   managedAccountId  Int
+  /// 转码状态（pending: 等待中, processing: 处理中, completed: 完成, failed: 失败）
   status            String    @default("pending")
+  /// 临时分享链接
   tempLink          String?   @db.Text
+  /// 转存后的文件ID
   transferredFileId String?
+  /// 转存开始时间
   transferStartTime DateTime  @default(now())
+  /// 转存结束时间
   transferEndTime   DateTime?
+  /// 错误代码
   errorCode         String?
+  /// 错误信息
   errorMessage      String?   @db.Text
+  /// 清理状态（pending: 待清理, completed: 已清理, failed: 清理失败）
   cleanupStatus     String    @default("pending")
+  /// 创建时间
   createdAt         DateTime  @default(now())
+  /// 更新时间
   updatedAt         DateTime  @updatedAt
+  /// 关联的账号
   account           Account   @relation(fields: [managedAccountId], references: [id])
 
   @@index([itemId])
   @@index([cleanupStatus])
 }
 
+/// 活动日志表
 model ActivityLog {
+  /// 日志ID
   id               BigInt    @id @default(autoincrement())
+  /// 时间戳
   timestamp        DateTime  @default(now())
+  /// 操作类型
   operationType    String
+  /// 客户端IP
   clientIp         String?
+  /// 关键词
   keyword          String?
+  /// 项目ID
   itemId           String?
-  driveType        String?
+  /// 网盘类型
+  driveType        DriveType?
+  /// 管理的账号ID
   managedAccountId Int?
+  /// 生成的链接
   generatedLink    String?   @db.Text
+  /// 错误代码
   errorCode        String?
+  /// 错误信息
   errorMessage     String?   @db.Text
+  /// 操作持续时间（毫秒）
   durationMs       Int?
+  /// 详细信息
   details          String?   @db.Text
+  /// 关联的账号
   account          Account?  @relation(fields: [managedAccountId], references: [id])
 
   @@index([itemId])
diff --git a/backend/src/adapters/BaiduDriveAdapter.ts b/backend/src/adapters/BaiduDriveAdapter.ts
index 9402231..1478171 100644
--- a/backend/src/adapters/BaiduDriveAdapter.ts
+++ b/backend/src/adapters/BaiduDriveAdapter.ts
@@ -1,8 +1,45 @@
-import { Account } from '@prisma/client';
-import { DriveAdapter, TransferResult } from './DriveAdapter';
+import { Account, PrismaClient } from '@prisma/client';
+import { DriveAdapter } from './DriveAdapter';
 import { logger } from '../utils/logger';
+import { execFile } from 'child_process';
+import { promisify } from 'util';
+import * as path from 'path';
+import * as os from 'os';
+import { DRIVE_TYPE, DriveType, TransferResult } from '../entity/drive.types';
+
+const execFileAsync = promisify(execFile);
+const prisma = new PrismaClient();
 
 export class BaiduDriveAdapter implements DriveAdapter {
+  private getBaiduPCSExecutable(): string {
+    const isWindows = os.platform() === 'win32';
+    const binDir = path.join(__dirname, '../../bin');
+    const platformDir = isWindows ? 'windows' : 'linux';
+    const executable = isWindows ? 'BaiduPCS-Go.exe' : 'BaiduPCS-Go';
+    return path.join(binDir, platformDir, executable);
+  }
+
+  private async executeCommand(args: string[]): Promise<string> {
+    try {
+      const { stdout } = await execFileAsync(this.getBaiduPCSExecutable(), args);
+      return stdout.trim();
+    } catch (error) {
+      logger.error('BaiduPCS command execution failed', { error, args });
+      throw error;
+    }
+  }
+
+  private async updateAccountStatus(account: Account, status: string, error?: string): Promise<void> {
+    await prisma.account.update({
+      where: { id: account.id },
+      data: {
+        status,
+        lastChecked: new Date(),
+        ...(error && { credentials: error })
+      }
+    });
+  }
+
   async transferAndShare(
     sourceLink: string,
     sourceLinkType: string,
@@ -10,22 +47,42 @@ export class BaiduDriveAdapter implements DriveAdapter {
   ): Promise<TransferResult> {
     try {
       logger.info('Baidu drive transferAndShare', { sourceLink, sourceLinkType, accountId: account.id });
-      // TODO: 实现百度网盘的具体转存和分享逻辑
-      // 1. 解析账号凭证
-      const credentials = JSON.parse(account.credentials);
       
-      // 2. 转存文件
-      // const transferredFileId = await this.transferFile(sourceLink, credentials);
+      // 1. 确保账号状态正常
+      if (account.status !== 'active') {
+        throw new Error(`Account is not active, current status: ${account.status}`);
+      }
+
+      // 2. 确保已登录
+      await this.ensureLoggedIn(account);
       
-      // 3. 生成分享链接
-      // const tempLink = await this.generateShareLink(transferredFileId, credentials);
+      // 3. 转存文件
+      const [link, pwd] = sourceLink.split('?pwd=');
+      const transferArgs = ['transfer', link];
+      if (pwd) {
+        transferArgs.push(pwd);
+      }
+      
+      const transferResult = await this.executeCommand(transferArgs);
+      logger.info('File transfer completed', { transferResult });
+      
+      // 4. 获取转存后的文件ID
+      const transferredFileId = this.parseFileIdFromTransferResult(transferResult);
+      
+      // 5. 生成分享链接
+      const shareResult = await this.executeCommand(['share', transferredFileId]);
+      const tempLink = this.parseShareLinkFromShareResult(shareResult);
+
+      // 6. 更新账号状态
+      await this.updateAccountStatus(account, 'active');
       
-      // 临时返回模拟数据
       return {
-        tempLink: 'https://pan.baidu.com/s/example',
-        transferredFileId: 'example_file_id'
+        tempLink,
+        transferredFileId
       };
-    } catch (error) {
+    } catch (error: any) {
+      // 更新账号状态为错误
+      await this.updateAccountStatus(account, 'error', error?.message || 'Unknown error');
       logger.error('Baidu drive transfer failed', { error, accountId: account.id });
       throw new Error('Failed to transfer and share file');
     }
@@ -33,10 +90,23 @@ export class BaiduDriveAdapter implements DriveAdapter {
 
   async delete(fileId: string, account: Account): Promise<void> {
     try {
-      // TODO: 实现百度网盘的文件删除逻辑
-      const credentials = JSON.parse(account.credentials);
-      // await this.deleteFile(fileId, credentials);
-    } catch (error) {
+      // 1. 确保账号状态正常
+      if (account.status !== 'active') {
+        throw new Error(`Account is not active, current status: ${account.status}`);
+      }
+
+      // 2. 确保已登录
+      await this.ensureLoggedIn(account);
+      
+      // 3. 删除文件
+      await this.executeCommand(['rm', fileId]);
+      logger.info('File deleted successfully', { fileId, accountId: account.id });
+
+      // 4. 更新账号状态
+      await this.updateAccountStatus(account, 'active');
+    } catch (error: any) {
+      // 更新账号状态为错误
+      await this.updateAccountStatus(account, 'error', error?.message || 'Unknown error');
       logger.error('Baidu drive delete failed', { error, accountId: account.id });
       throw new Error('Failed to delete file');
     }
@@ -44,14 +114,46 @@ export class BaiduDriveAdapter implements DriveAdapter {
 
   async checkAccountStatus(account: Account): Promise<boolean> {
     try {
-      // TODO: 实现百度网盘的账号状态检查逻辑
-      const credentials = JSON.parse(account.credentials);
-      // const isValid = await this.checkAccount(credentials);
-      // return isValid;
-      return true; // 临时返回
-    } catch (error) {
+      // 1. 尝试登录
+      await this.ensureLoggedIn(account);
+      
+      // 2. 验证登录状态
+      await this.executeCommand(['pwd']);
+
+      // 3. 更新账号状态为活跃
+      await this.updateAccountStatus(account, 'active');
+      return true;
+    } catch (error: any) {
+      // 更新账号状态为错误
+      await this.updateAccountStatus(account, 'error', error?.message || 'Unknown error');
       logger.error('Baidu drive account check failed', { error, accountId: account.id });
       return false;
     }
   }
+
+  private async ensureLoggedIn(account: Account): Promise<void> {
+    try {
+      // 先尝试执行一个命令来检查是否已登录
+      await this.executeCommand(['pwd']);
+    } catch (error) {
+      // 如果未登录，则执行登录
+      await this.executeCommand([
+        'login',
+        account.accountIdentifier,
+        account.credentials
+      ]);
+    }
+  }
+
+  private parseFileIdFromTransferResult(result: string): string {
+    // 从转存结果中解析文件ID
+    const match = result.match(/文件ID: (\d+)/);
+    return match ? match[1] : '';
+  }
+
+  private parseShareLinkFromShareResult(result: string): string {
+    // 从分享结果中解析分享链接
+    const match = result.match(/分享链接: (https:\/\/pan\.baidu\.com\/s\/\w+)/);
+    return match ? match[1] : '';
+  }
 } 
\ No newline at end of file
diff --git a/backend/src/app.ts b/backend/src/app.ts
index e0d6103..5334945 100644
--- a/backend/src/app.ts
+++ b/backend/src/app.ts
@@ -4,9 +4,17 @@ import rateLimit from 'express-rate-limit'
 import swaggerUi from 'swagger-ui-express'
 import { swaggerSpec } from './config/swagger'
 import { getSearchResults, getLinkForResource } from './controllers/searchController'
+import { initRedis } from './lib/redis'
+import logger from './lib/logger'
 
 const app = express()
 
+// 初始化 Redis 连接
+initRedis().catch(err => {
+  logger.error('Redis 初始化失败，应用启动终止', { error: err })
+  process.exit(1)
+})
+
 app.use(cors())
 app.use(express.json())
 app.use(rateLimit({ windowMs: 1000, max: 5 }))
diff --git a/backend/src/constants/redis.keys.ts b/backend/src/constants/redis.keys.ts
new file mode 100644
index 0000000..45153e7
--- /dev/null
+++ b/backend/src/constants/redis.keys.ts
@@ -0,0 +1,29 @@
+/**
+ * Redis key 常量定义
+ * 命名规范：
+ * 1. 使用大写字母和下划线
+ * 2. 按功能模块分组
+ * 3. 添加注释说明用途
+ */
+
+// 搜索服务相关
+export const SEARCH_SERVICE = {
+  /** 搜索服务认证 token */
+  TOKEN: 'search_service_token',
+} as const;
+
+// 用户相关
+export const USER = {
+  /** 用户会话信息 */
+  SESSION: 'user:session:',
+  /** 用户令牌 */
+  TOKEN: 'user:token:',
+} as const;
+
+// 系统相关
+export const SYSTEM = {
+  /** 系统配置缓存 */
+  CONFIG: 'system:config',
+  /** 系统状态 */
+  STATUS: 'system:status',
+} as const; 
\ No newline at end of file
diff --git a/backend/src/entity/drive.types.ts b/backend/src/entity/drive.types.ts
new file mode 100644
index 0000000..47f1309
--- /dev/null
+++ b/backend/src/entity/drive.types.ts
@@ -0,0 +1,11 @@
+export const DRIVE_TYPE = {
+  BAIDU: 'BAIDU',
+  ALIYUN: 'ALIYUN'
+} as const;
+
+export type DriveType = typeof DRIVE_TYPE[keyof typeof DRIVE_TYPE];
+
+export interface TransferResult {
+  tempLink: string;
+  transferredFileId: string;
+} 
\ No newline at end of file
diff --git a/backend/src/entity/search.types.ts b/backend/src/entity/search.types.ts
new file mode 100644
index 0000000..e1ae65b
--- /dev/null
+++ b/backend/src/entity/search.types.ts
@@ -0,0 +1,63 @@
+export interface LoginResponse {
+  success: boolean;
+  code: number;
+  data: {
+    token: string;
+  };
+  message: string;
+}
+
+export interface SearchResponse {
+  success: boolean;
+  code: number;
+  data: Array<{
+    list: Array<{
+      messageId: string;
+      title: string;
+      pubDate: string;
+      content: string;
+      image?: string;
+      cloudLinks?: Array<{
+        link: string;
+        cloudType: string;
+      }>;
+      tags?: string[];
+      channel: string;
+      channelId: string;
+    }>;
+    channelInfo: {
+      id: string;
+      name: string;
+      index: number;
+      channelLogo?: string;
+    };
+  }>;
+  message: string;
+}
+
+export interface SearchParams {
+  keyword: string;
+  types: string[];
+  page: number;
+  fileType?: string;
+  fileSize?: string;
+  fileTime?: string;
+  mode?: 'standard' | 'fuzzy';
+}
+
+export interface SearchResult {
+  success: boolean;
+  code: number;
+  data: any[];
+  message: string;
+}
+
+export interface LinkResult {
+  success: boolean;
+  code: number;
+  data: {
+    url: string;
+    expireTime: string;
+  };
+  message: string;
+} 
\ No newline at end of file
diff --git a/backend/src/lib/redis.ts b/backend/src/lib/redis.ts
new file mode 100644
index 0000000..302b8c1
--- /dev/null
+++ b/backend/src/lib/redis.ts
@@ -0,0 +1,29 @@
+import { createClient } from 'redis';
+import { config } from '../config/config';
+import logger from './logger';
+
+// 创建 Redis 客户端实例
+const redis = createClient({
+  url: `redis://${config.redis.host}:${config.redis.port}`,
+  password: config.redis.password
+});
+
+// Redis 错误处理和连接监控
+redis.on('error', err => logger.error('Redis 客户端错误:', { error: err }));
+redis.on('connect', () => logger.info('Redis 客户端已连接'));
+redis.on('ready', () => logger.info('Redis 客户端就绪'));
+redis.on('reconnecting', () => logger.warn('Redis 客户端正在重连'));
+
+// 初始化 Redis 连接
+export async function initRedis(): Promise<void> {
+  try {
+    await redis.connect();
+    logger.info('Redis 连接初始化成功');
+  } catch (err) {
+    logger.error('Redis 连接初始化失败:', { error: err });
+    throw err;
+  }
+}
+
+// 导出 Redis 客户端实例
+export { redis }; 
\ No newline at end of file
diff --git a/backend/src/services/activityLogService.ts b/backend/src/services/activityLogService.ts
index 4e49b2a..836e6ec 100644
--- a/backend/src/services/activityLogService.ts
+++ b/backend/src/services/activityLogService.ts
@@ -1,5 +1,6 @@
 import { prisma } from '../lib/prisma';
 import { Prisma } from '@prisma/client';
+import { DriveType } from '../entity/drive.types';
 
 // 监听 SQL 查询
 (prisma as any).$on('query', (e: Prisma.QueryEvent) => {
@@ -35,7 +36,7 @@ export class ActivityLogService {
     clientIp?: string;
     keyword?: string;
     itemId?: string;
-    driveType?: string;
+    driveType?: DriveType;
     managedAccountId?: number;
     generatedLink?: string;
     errorCode?: string;
diff --git a/backend/src/services/searchService.ts b/backend/src/services/searchService.ts
index 1ddae5d..a8b7fe7 100644
--- a/backend/src/services/searchService.ts
+++ b/backend/src/services/searchService.ts
@@ -1,91 +1,11 @@
 import axios from 'axios';
 import { config } from '../config/config';
-import { createClient } from 'redis';
 import logger from '../lib/logger';
 import { handleError } from '../decorators/errorHandler';
 import { AppError } from '../utils/AppError';
-
-const redis = createClient({
-  url: `redis://${config.redis.host}:${config.redis.port}`,
-  password: config.redis.password
-});
-
-// Redis 错误处理和连接监控
-redis.on('error', err => logger.error('Redis 客户端错误:', { error: err }));
-redis.on('connect', () => logger.info('Redis 客户端已连接'));
-redis.on('ready', () => logger.info('Redis 客户端就绪'));
-redis.on('reconnecting', () => logger.warn('Redis 客户端正在重连'));
-
-// 初始化 Redis 连接
-redis.connect().catch(err => {
-  logger.error('Redis 连接错误:', { error: err });
-});
-
-const TOKEN_KEY = 'search_service_token';
-
-interface LoginResponse {
-  success: boolean;
-  code: number;
-  data: {
-    token: string;
-  };
-  message: string;
-}
-
-interface SearchResponse {
-  success: boolean;
-  code: number;
-  data: Array<{
-    list: Array<{
-      messageId: string;
-      title: string;
-      pubDate: string;
-      content: string;
-      image?: string;
-      cloudLinks?: Array<{
-        link: string;
-        cloudType: string;
-      }>;
-      tags?: string[];
-      channel: string;
-      channelId: string;
-    }>;
-    channelInfo: {
-      id: string;
-      name: string;
-      index: number;
-      channelLogo?: string;
-    };
-  }>;
-  message: string;
-}
-
-interface SearchParams {
-  keyword: string;
-  types: string[];
-  page: number;
-  fileType?: string;
-  fileSize?: string;
-  fileTime?: string;
-  mode?: 'standard' | 'fuzzy';
-}
-
-interface SearchResult {
-  success: boolean;
-  code: number;
-  data: any[];
-  message: string;
-}
-
-interface LinkResult {
-  success: boolean;
-  code: number;
-  data: {
-    url: string;
-    expireTime: string;
-  };
-  message: string;
-}
+import { LoginResponse, SearchResponse, SearchParams, SearchResult, LinkResult } from '../entity/search.types';
+import { SEARCH_SERVICE } from '../constants/redis.keys';
+import { redis } from '../lib/redis';
 
 export class SearchService {
   private baseUrl: string;
@@ -98,7 +18,7 @@ export class SearchService {
   @handleError('获取认证 token 失败')
   private async getToken(): Promise<string> {
     // 尝试从 Redis 获取 token
-    const cachedToken = await redis.get(TOKEN_KEY);
+    const cachedToken = await redis.get(SEARCH_SERVICE.TOKEN);
     if (cachedToken) {
       logger.debug('从缓存中获取到 token');
       return cachedToken;
@@ -120,7 +40,7 @@ export class SearchService {
 
     logger.info('成功获取新 token');
     // 将 token 缓存到 Redis
-    await redis.set(TOKEN_KEY, response.data.data.token, {
+    await redis.set(SEARCH_SERVICE.TOKEN, response.data.data.token, {
       EX: 21600, // 6 小时
     });
     return response.data.data.token;