diff --git a/lidee-service/lidee-iot-service/src/main/java/iot/lidee/iot/service/impl/DeviceServiceImpl.java b/lidee-service/lidee-iot-service/src/main/java/iot/lidee/iot/service/impl/DeviceServiceImpl.java
index b9e6b97..0502e33 100644
--- a/lidee-service/lidee-iot-service/src/main/java/iot/lidee/iot/service/impl/DeviceServiceImpl.java
+++ b/lidee-service/lidee-iot-service/src/main/java/iot/lidee/iot/service/impl/DeviceServiceImpl.java
@@ -1876,70 +1876,94 @@ public class DeviceServiceImpl implements IDeviceService {
 
     private long deleteDeviceLogBatch(Date cutoffDate) {
         long totalDeleted = 0;
-        int batchSize = 5000;
+        int batchSize = 1000;
+        int batchCount = 0;
 
         while (true) {
             int deleted = deviceMapper.deleteDeviceLogBatch(cutoffDate, batchSize);
             totalDeleted += deleted;
+            batchCount++;
+
+            if (batchCount % 10 == 0) {
+                log.info("设备日志已删除{}批，累计删除:{}条", batchCount, totalDeleted);
+            }
 
             if (deleted == 0) {
                 break;
             }
 
             try {
-                Thread.sleep(100);
+                Thread.sleep(50);
             } catch (InterruptedException e) {
                 Thread.currentThread().interrupt();
+                log.warn("设备日志删除任务被中断");
                 break;
             }
         }
 
+        log.info("设备日志删除完成，共{}批，总计删除:{}条", batchCount, totalDeleted);
         return totalDeleted;
     }
 
     private long deleteEventLogBatch(Date cutoffDate) {
         long totalDeleted = 0;
-        int batchSize = 5000;
+        int batchSize = 1000;
+        int batchCount = 0;
 
         while (true) {
             int deleted = deviceMapper.deleteEventLogBatch(cutoffDate, batchSize);
             totalDeleted += deleted;
+            batchCount++;
+
+            if (batchCount % 10 == 0) {
+                log.info("事件日志已删除{}批，累计删除:{}条", batchCount, totalDeleted);
+            }
 
             if (deleted == 0) {
                 break;
             }
 
             try {
-                Thread.sleep(100);
+                Thread.sleep(50);
             } catch (InterruptedException e) {
                 Thread.currentThread().interrupt();
+                log.warn("事件日志删除任务被中断");
                 break;
             }
         }
 
+        log.info("事件日志删除完成，共{}批，总计删除:{}条", batchCount, totalDeleted);
         return totalDeleted;
     }
 
     private long deleteFunctionLogBatch(Date cutoffDate) {
         long totalDeleted = 0;
-        int batchSize = 5000;
+        int batchSize = 1000;
+        int batchCount = 0;
 
         while (true) {
             int deleted = deviceMapper.deleteFunctionLogBatch(cutoffDate, batchSize);
             totalDeleted += deleted;
+            batchCount++;
+
+            if (batchCount % 10 == 0) {
+                log.info("告警日志已删除{}批，累计删除:{}条", batchCount, totalDeleted);
+            }
 
             if (deleted == 0) {
                 break;
             }
 
             try {
-                Thread.sleep(100);
+                Thread.sleep(50);
             } catch (InterruptedException e) {
                 Thread.currentThread().interrupt();
+                log.warn("告警日志删除任务被中断");
                 break;
             }
         }
 
+        log.info("告警日志删除完成，共{}批，总计删除:{}条", batchCount, totalDeleted);
         return totalDeleted;
     }
 }
diff --git a/lidee-service/lidee-iot-service/src/main/resources/mapper/iot/DeviceMapper.xml b/lidee-service/lidee-iot-service/src/main/resources/mapper/iot/DeviceMapper.xml
index b826b63..f345dc8 100644
--- a/lidee-service/lidee-iot-service/src/main/resources/mapper/iot/DeviceMapper.xml
+++ b/lidee-service/lidee-iot-service/src/main/resources/mapper/iot/DeviceMapper.xml
@@ -976,7 +976,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
     </delete>
 
     <delete id="deleteEventLogBatch">
-        DELETE FROM iot_event log
+        DELETE FROM iot_event_log
         WHERE create_time &lt; #{cutoffDate}
             LIMIT #{batchSize}
     </delete>