diff --git a/yudao-module-ai/yudao-module-ai-biz/src/main/java/cn/iocoder/yudao/module/ai/dataobject/AiChatConversationDO.java b/yudao-module-ai/yudao-module-ai-biz/src/main/java/cn/iocoder/yudao/module/ai/dataobject/AiChatConversationDO.java
index 8f1956392..c48baa1c6 100644
--- a/yudao-module-ai/yudao-module-ai-biz/src/main/java/cn/iocoder/yudao/module/ai/dataobject/AiChatConversationDO.java
+++ b/yudao-module-ai/yudao-module-ai-biz/src/main/java/cn/iocoder/yudao/module/ai/dataobject/AiChatConversationDO.java
@@ -30,10 +30,10 @@ public class AiChatConversationDO extends BaseDO {
     @Schema(description = "chat角色名称")
     private String chatRoleName;
 
-    @Schema(description = "对话标题(有程序自动生成)")
+    @Schema(description = "聊天标题(有程序自动生成)")
     private String chatTitle;
 
-    @Schema(description = "对话标题(有程序自动生成)")
+    @Schema(description = "聊天次数(有程序自动生成)")
     private Integer chatCount;
 
     @Schema(description = "对话类型(roleChat、userChat)")
diff --git a/yudao-module-ai/yudao-module-ai-biz/src/main/java/cn/iocoder/yudao/module/ai/mapper/AiChatConversationMapper.java b/yudao-module-ai/yudao-module-ai-biz/src/main/java/cn/iocoder/yudao/module/ai/mapper/AiChatConversationMapper.java
index 6e018a892..f6f58e7a0 100644
--- a/yudao-module-ai/yudao-module-ai-biz/src/main/java/cn/iocoder/yudao/module/ai/mapper/AiChatConversationMapper.java
+++ b/yudao-module-ai/yudao-module-ai-biz/src/main/java/cn/iocoder/yudao/module/ai/mapper/AiChatConversationMapper.java
@@ -1,12 +1,19 @@
 package cn.iocoder.yudao.module.ai.mapper;
 
+import cn.hutool.core.collection.CollUtil;
+import cn.hutool.core.util.StrUtil;
+import cn.iocoder.yudao.framework.common.pojo.PageParam;
+import cn.iocoder.yudao.framework.common.pojo.PageResult;
 import cn.iocoder.yudao.framework.mybatis.core.mapper.BaseMapperX;
 import cn.iocoder.yudao.module.ai.dataobject.AiChatConversationDO;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 import org.apache.ibatis.annotations.Update;
 import org.springframework.stereotype.Repository;
 
+import java.util.List;
+
 /**
  * message mapper
  *
@@ -21,4 +28,34 @@ public interface AiChatConversationMapper extends BaseMapperX<AiChatConversation
     @Update("update ai_chat_conversation set chat_count = chat_count + 1 where id = #{id}")
     void updateIncrChatCount(@Param("id") Long id);
 
+    /**
+     * 查询 - 最新的对话
+     *
+     * @param loginUserId
+     */
+    default AiChatConversationDO selectLatestConversation(Long loginUserId) {
+        PageResult<AiChatConversationDO> pageResult = selectPage(new PageParam().setPageNo(1).setPageSize(1),
+                new LambdaQueryWrapper<AiChatConversationDO>()
+                        .eq(AiChatConversationDO::getUserId, loginUserId)
+                        .orderByDesc(AiChatConversationDO::getId));
+        if (CollUtil.isEmpty(pageResult.getList())) {
+            return null;
+        }
+        return pageResult.getList().get(0);
+    }
+
+    /**
+     * 查询 - 前100
+     *
+     * @param search
+     */
+    default List<AiChatConversationDO> selectTop100Conversation(Long loginUserId, String search) {
+        LambdaQueryWrapper<AiChatConversationDO> queryWrapper
+                = new LambdaQueryWrapper<AiChatConversationDO>().eq(AiChatConversationDO::getUserId, loginUserId);
+        if (!StrUtil.isBlank(search)) {
+            queryWrapper.like(AiChatConversationDO::getChatTitle, search);
+        }
+        queryWrapper.orderByDesc(AiChatConversationDO::getId);
+        return selectPage(new PageParam().setPageNo(1).setPageSize(100), queryWrapper).getList();
+    }
 }