diff --git a/ruoyi-system/src/main/java/com/ruoyi/jarvis/service/impl/InstructionServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/jarvis/service/impl/InstructionServiceImpl.java
index 6b46390..d592960 100644
--- a/ruoyi-system/src/main/java/com/ruoyi/jarvis/service/impl/InstructionServiceImpl.java
+++ b/ruoyi-system/src/main/java/com/ruoyi/jarvis/service/impl/InstructionServiceImpl.java
@@ -98,7 +98,7 @@ public class InstructionServiceImpl implements IInstructionService {
             // 从左边推入消息（新消息在前）
             stringRedisTemplate.opsForList().leftPush(key, timestampedMessage);
             // 保持列表最多100条，删除最早的消息
-            stringRedisTemplate.opsForList().trim(key, 0, 99);
+            stringRedisTemplate.opsForList().trim(key, 0, 999);
         } catch (Exception e) {
             // 记录异常但不影响主流程
             System.err.println("存储消息到Redis失败: " + e.getMessage());
@@ -123,7 +123,7 @@ public class InstructionServiceImpl implements IInstructionService {
             }
 
             // 确定获取数量，默认100条
-            int count = (limit != null && limit > 0) ? Math.min(limit, 100) : 100;
+            int count = (limit != null && limit > 0) ? Math.min(limit, 1000) : 1000;
 
             // 从Redis获取历史消息（索引0到count-1）
             List<String> messages = stringRedisTemplate.opsForList().range(key, 0, count - 1);