diff --git a/MONGODB_INDEXES.md b/MONGODB_INDEXES.md
index 35e8acb..5010e1c 100644
--- a/MONGODB_INDEXES.md
+++ b/MONGODB_INDEXES.md
@@ -44,6 +44,8 @@ db.jimeng_free_generation_tasks.createIndex({
 db.jimeng_free_generation_results.createIndex({ "task_id": 1 }, { unique: true });
 db.jimeng_free_generation_results.createIndex({ "server_id": 1 });
 db.jimeng_free_generation_results.createIndex({ "created_at": 1 });
+db.jimeng_free_generation_results.createIndex({ "is_read": 1 });
+db.jimeng_free_generation_results.createIndex({ "first_read_at": 1 });
 
 // TTL索引 - 自动清理过期记录
 db.jimeng_free_generation_results.createIndex({ 
@@ -57,6 +59,12 @@ db.jimeng_free_generation_results.createIndex({
     "server_id": 1, 
     "created_at": 1 
 });
+
+// 复合索引 - 用于查询已读取/未读取的结果
+db.jimeng_free_generation_results.createIndex({ 
+    "is_read": 1, 
+    "created_at": 1 
+});
 ```
 
 ### 3. 服务器心跳表 (jimeng_servers)
@@ -97,8 +105,11 @@ print("创建生成结果表索引...");
 db.jimeng_free_generation_results.createIndex({ "task_id": 1 }, { unique: true });
 db.jimeng_free_generation_results.createIndex({ "server_id": 1 });
 db.jimeng_free_generation_results.createIndex({ "created_at": 1 });
+db.jimeng_free_generation_results.createIndex({ "is_read": 1 });
+db.jimeng_free_generation_results.createIndex({ "first_read_at": 1 });
 db.jimeng_free_generation_results.createIndex({ "expires_at": 1 }, { expireAfterSeconds: 0 });
 db.jimeng_free_generation_results.createIndex({ "server_id": 1, "created_at": 1 });
+db.jimeng_free_generation_results.createIndex({ "is_read": 1, "created_at": 1 });
 
 print("创建服务器心跳表索引...");
 db.jimeng_servers.createIndex({ "server_id": 1 }, { unique: true });
diff --git a/src/lib/database/models/GenerationResult.ts b/src/lib/database/models/GenerationResult.ts
index be8e3e8..8b7ab8a 100644
--- a/src/lib/database/models/GenerationResult.ts
+++ b/src/lib/database/models/GenerationResult.ts
@@ -24,6 +24,11 @@ export interface IGenerationResult extends Document {
     // 时间管理
     created_at: number;           // 创建时间戳（秒）
     expires_at: number;           // 过期时间戳（用于自动清理，默认24小时后）
+    
+    // 读取状态
+    is_read: boolean;             // 是否已被读取
+    first_read_at?: number;       // 首次读取时间戳（秒）
+    read_count: number;           // 读取次数
 }
 
 const GenerationResultSchema: Schema = new Schema({
@@ -69,10 +74,24 @@ const GenerationResultSchema: Schema = new Schema({
     expires_at: {
         type: Number,
         required: true
+    },
+    is_read: {
+        type: Boolean,
+        default: false
+    },
+    first_read_at: {
+        type: Number
+    },
+    read_count: {
+        type: Number,
+        default: 0
     }
 }, {
     collection: 'jimeng_free_generation_results',
     timestamps: false // 使用自定义时间戳
 });
 
+// 添加TTL索引，自动清理过期数据
+GenerationResultSchema.index({ expires_at: 1 }, { expireAfterSeconds: 0 });
+
 export default mongoose.model<IGenerationResult>('GenerationResult', GenerationResultSchema);
\ No newline at end of file
diff --git a/src/lib/services/DatabaseGenerationService.ts b/src/lib/services/DatabaseGenerationService.ts
index e8d851e..276c2cc 100644
--- a/src/lib/services/DatabaseGenerationService.ts
+++ b/src/lib/services/DatabaseGenerationService.ts
@@ -147,7 +147,7 @@ export class DatabaseGenerationService {
     
     /**
      * 查询任务结果
-     * 从结果表查询，如果存在则返回并清理，否则查询任务状态
+     * 从结果表查询，如果存在则返回结果并标记为已读取，依靠TTL自动清理过期数据
      */
     async queryTaskResult(taskId: string): Promise<any> {
         try {
@@ -155,7 +155,24 @@ export class DatabaseGenerationService {
             const result = await GenerationResult.findOne({ task_id: taskId });
             
             if (result) {
-                // 找到结果，返回并清理
+                // 找到结果，标记为已读取
+                const currentTime = Math.floor(Date.now() / 1000);
+                const updateData: any = {
+                    read_count: (result.read_count || 0) + 1
+                };
+                
+                // 如果是首次读取，记录首次读取时间
+                if (!result.is_read) {
+                    updateData.is_read = true;
+                    updateData.first_read_at = currentTime;
+                }
+                
+                // 更新读取状态
+                await GenerationResult.updateOne(
+                    { task_id: taskId },
+                    { $set: updateData }
+                );
+                
                 const response = {
                     created: Math.floor(Date.now() / 1000),
                     data: {
@@ -165,10 +182,7 @@ export class DatabaseGenerationService {
                     }
                 };
                 
-                // 删除结果记录（一次性消费）
-                await GenerationResult.deleteOne({ task_id: taskId });
-                
-                logger.info(`Task result retrieved and cleaned: ${taskId}, status: ${result.status}`);
+                logger.info(`Task result retrieved: ${taskId}, status: ${result.status}, read_count: ${updateData.read_count}`);
                 return response;
             }