diff --git a/packages/backend/src/audit/audit.controller.ts b/packages/backend/src/audit/audit.controller.ts
index f33e588..ce1dc62 100644
--- a/packages/backend/src/audit/audit.controller.ts
+++ b/packages/backend/src/audit/audit.controller.ts
@@ -14,9 +14,13 @@ export class AuditController {
             // 解析查询参数
             const limit = parseInt(req.query.limit as string || '50', 10);
             const offset = parseInt(req.query.offset as string || '0', 10);
-            const actionType = req.query.actionType as AuditLogActionType | undefined;
+            // 修正：从 req.query 中读取 action_type (snake_case)
+            const actionType = req.query.action_type as AuditLogActionType | undefined;
             const startDate = req.query.startDate ? parseInt(req.query.startDate as string, 10) : undefined;
             const endDate = req.query.endDate ? parseInt(req.query.endDate as string, 10) : undefined;
+            // 解析 searchTerm 参数
+            const searchTerm = req.query.search as string | undefined;
+
 
             // 输入验证 (基本)
             if (isNaN(limit) || limit <= 0) {
@@ -37,7 +41,8 @@ export class AuditController {
             }
             // TODO: 可以添加对 actionType 是否有效的验证
 
-            const result = await auditLogService.getLogs(limit, offset, actionType, startDate, endDate);
+            // 将 searchTerm 传递给 service
+            const result = await auditLogService.getLogs(limit, offset, actionType, startDate, endDate, searchTerm);
 
             // 解析 details 字段从 JSON 字符串到对象（如果需要）
             const logsWithParsedDetails = result.logs.map(log => {
diff --git a/packages/backend/src/repositories/audit.repository.ts b/packages/backend/src/repositories/audit.repository.ts
index 804a7cd..a3ecead 100644
--- a/packages/backend/src/repositories/audit.repository.ts
+++ b/packages/backend/src/repositories/audit.repository.ts
@@ -50,23 +50,40 @@ export class AuditLogRepository {
      * @param actionType 可选的操作类型过滤
      * @param startDate 可选的开始时间戳 (秒)
      * @param endDate 可选的结束时间戳 (秒)
+     * @param searchTerm 可选的搜索关键词 (模糊匹配 details)
      */
     async getLogs(
         limit: number = 50,
         offset: number = 0,
         actionType?: AuditLogActionType,
         startDate?: number,
-        endDate?: number
+        endDate?: number,
+        searchTerm?: string // 添加 searchTerm 参数
     ): Promise<{ logs: AuditLogEntry[], total: number }> {
+        console.log(`[Audit Repo] getLogs called with: actionType=${actionType}, searchTerm=${searchTerm}`); // 添加日志
+
         let baseSql = 'SELECT * FROM audit_logs';
         let countSql = 'SELECT COUNT(*) as total FROM audit_logs';
         const whereClauses: string[] = [];
         const params: (string | number)[] = [];
         const countParams: (string | number)[] = [];
 
-        if (actionType) { whereClauses.push('action_type = ?'); params.push(actionType); countParams.push(actionType); }
-        if (startDate) { whereClauses.push('timestamp >= ?'); params.push(startDate); countParams.push(startDate); }
-        if (endDate) { whereClauses.push('timestamp <= ?'); params.push(endDate); countParams.push(endDate); }
+        if (actionType) {
+            console.log(`[Audit Repo] Filtering by actionType: ${actionType}`); // 添加日志
+            whereClauses.push('action_type = ?');
+            params.push(actionType);
+            countParams.push(actionType);
+        }
+        // 添加 searchTerm 的过滤逻辑
+        if (searchTerm) {
+            console.log(`[Audit Repo] Filtering by searchTerm: ${searchTerm}`); // 添加日志
+            // 搜索 details 字段，使用 LIKE 进行模糊匹配
+            whereClauses.push('details LIKE ?');
+            const searchTermLike = `%${searchTerm}%`;
+            params.push(searchTermLike);
+            countParams.push(searchTermLike);
+        }
+
 
         if (whereClauses.length > 0) {
             const whereSql = ` WHERE ${whereClauses.join(' AND ')}`;
@@ -77,6 +94,9 @@ export class AuditLogRepository {
         baseSql += ' ORDER BY timestamp DESC LIMIT ? OFFSET ?';
         params.push(limit, offset);
 
+        console.log(`[Audit Repo] Executing count SQL: ${countSql} with params:`, countParams); // 添加日志
+        console.log(`[Audit Repo] Executing base SQL: ${baseSql} with params:`, params); // 添加日志
+
         try {
             const db = await getDbInstance();
             // First get the total count
diff --git a/packages/backend/src/services/audit.service.ts b/packages/backend/src/services/audit.service.ts
index 6581f85..5ed4c20 100644
--- a/packages/backend/src/services/audit.service.ts
+++ b/packages/backend/src/services/audit.service.ts
@@ -41,9 +41,11 @@ export class AuditLogService {
         offset: number = 0,
         actionType?: AuditLogActionType,
         startDate?: number,
-        endDate?: number
+        endDate?: number,
+        searchTerm?: string // 添加 searchTerm 参数
     ): Promise<{ logs: AuditLogEntry[], total: number }> {
-        return this.repository.getLogs(limit, offset, actionType, startDate, endDate);
+        // 将 searchTerm 传递给 repository
+        return this.repository.getLogs(limit, offset, actionType, startDate, endDate, searchTerm);
     }
 }