diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/utils/AiServiceUtil.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/utils/AiServiceUtil.java
index cad7391..0d794bf 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/utils/AiServiceUtil.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/utils/AiServiceUtil.java
@@ -115,7 +115,7 @@ public class AiServiceUtil {
                 int totalTokens = jsonNode.path("usage").path("total_tokens").asInt();
                 log.info("AI回复成功，消耗token: {}", totalTokens);
                 
-                // 9. 缓存AI回复（缓存5分钟）
+                // 9. 缓存AI回复（缓存一天）
                 RedisUtils.setCacheObject(cacheKey, aiResponse, Duration.ofDays(1));
                 
                 return aiResponse;
@@ -143,8 +143,8 @@ public class AiServiceUtil {
         // 缓存中没有，从数据库获取
         SysOaAiConfigVo config = configService.getActiveConfig();
         if (config != null) {
-            // 缓存配置（缓存30分钟）
-            RedisUtils.setCacheObject(AI_CONFIG_CACHE_KEY, config, Duration.ofMinutes(30));
+            // 缓存配置（缓存一天）
+            RedisUtils.setCacheObject(AI_CONFIG_CACHE_KEY, config, Duration.ofDays(1));
             log.debug("AI配置已缓存到Redis");
         }
 
@@ -172,7 +172,7 @@ public class AiServiceUtil {
      */
     public void cacheConversationHistory(Long conversationId, List<SysOaAiMessageVo> messages) {
         String cacheKey = AI_CONVERSATION_CACHE_KEY + conversationId;
-        RedisUtils.setCacheObject(cacheKey, messages, Duration.ofMinutes(10));
+        RedisUtils.setCacheObject(cacheKey, messages, Duration.ofDays(1));
         log.debug("对话历史已缓存到Redis, conversationId: {}", conversationId);
     }