diff --git a/src/chat/utils/statistic.py b/src/chat/utils/statistic.py
index 18c00474..c82c5df8 100644
--- a/src/chat/utils/statistic.py
+++ b/src/chat/utils/statistic.py
@@ -165,11 +165,13 @@ class StatisticOutputTask(AsyncTask):
 
         self.stat_period: List[Tuple[str, timedelta, str]] = [
             ("all_time", now - deploy_time, "自部署以来"),  # 必须保留"all_time"
-            ("last_7_days", timedelta(days=7), "最近7天"),
-            ("last_3_days", timedelta(days=3), "最近3天"),
-            ("last_24_hours", timedelta(days=1), "最近24小时"),
-            ("last_3_hours", timedelta(hours=3), "最近3小时"),
-            ("last_hour", timedelta(hours=1), "最近1小时"),
+            ("last_30_days", timedelta(days=30), "近30天"),
+            ("last_7_days", timedelta(days=7), "近7天"),
+            ("last_3_days", timedelta(days=3), "近3天"),
+            ("last_24_hours", timedelta(days=1), "近1天"),
+            ("last_3_hours", timedelta(hours=3), "近3小时"),
+            ("last_hour", timedelta(hours=1), "近1小时"),
+            ("last_15_minutes", timedelta(minutes=15), "近15分钟"),
         ]
         """
         统计时间段 [(统计名称, 统计时间段, 统计描述), ...]
diff --git a/src/memory_system/memory_retrieval.py b/src/memory_system/memory_retrieval.py
index b3207459..ac7eb4bc 100644
--- a/src/memory_system/memory_retrieval.py
+++ b/src/memory_system/memory_retrieval.py
@@ -178,6 +178,7 @@ async def _react_agent_solve_question(
         success, response, reasoning_content, model_name = await llm_api.generate_with_model(
             prompt,
             model_config=model_config.model_task_config.tool_use,
+            request_type="memory.react",
         )
         
         logger.info(f"ReAct Agent 第 {iteration + 1} 次迭代 LLM响应: {response}")
@@ -474,6 +475,7 @@ async def build_memory_retrieval_prompt(
         success, response, reasoning_content, model_name = await llm_api.generate_with_model(
             question_prompt,
             model_config=model_config.model_task_config.tool_use,
+            request_type="memory.question",
         )
         
         logger.info(f"记忆检索问题生成提示词: {question_prompt}")