diff --git a/chat-server/src/main/java/com/bjtds/brichat/mapper/opengauss/TDatasetFilesMapper.java b/chat-server/src/main/java/com/bjtds/brichat/mapper/opengauss/TDatasetFilesMapper.java
index 4f4a421..8e4bb84 100644
--- a/chat-server/src/main/java/com/bjtds/brichat/mapper/opengauss/TDatasetFilesMapper.java
+++ b/chat-server/src/main/java/com/bjtds/brichat/mapper/opengauss/TDatasetFilesMapper.java
@@ -175,4 +175,10 @@ public interface TDatasetFilesMapper {
      * @return 影响行数
      */
     int physicalDeleteByParentId(@Param("parentId") Long parentId);
+
+    /**
+     * 查询所有文件
+     */
+    List<TDatasetFiles> selectAll();
+
 } 
\ No newline at end of file
diff --git a/chat-server/src/main/java/com/bjtds/brichat/service/DatasetFilesService.java b/chat-server/src/main/java/com/bjtds/brichat/service/DatasetFilesService.java
index bbe6d97..18e50f3 100644
--- a/chat-server/src/main/java/com/bjtds/brichat/service/DatasetFilesService.java
+++ b/chat-server/src/main/java/com/bjtds/brichat/service/DatasetFilesService.java
@@ -153,4 +153,10 @@ public interface DatasetFilesService {
      * @return 是否删除成功
      */
     boolean physicalDeleteFilesByParentId(Long parentId);
+
+
+    /**
+     * 获取所有文件
+     */
+    List<TDatasetFiles> getAllFiles();
 } 
\ No newline at end of file
diff --git a/chat-server/src/main/java/com/bjtds/brichat/service/impl/DatasetFilesServiceImpl.java b/chat-server/src/main/java/com/bjtds/brichat/service/impl/DatasetFilesServiceImpl.java
index 92ddf8f..2fbd4d3 100644
--- a/chat-server/src/main/java/com/bjtds/brichat/service/impl/DatasetFilesServiceImpl.java
+++ b/chat-server/src/main/java/com/bjtds/brichat/service/impl/DatasetFilesServiceImpl.java
@@ -403,4 +403,12 @@ public class DatasetFilesServiceImpl implements DatasetFilesService {
         // 物理删除所有子文件/文件夹
         return datasetFilesMapper.physicalDeleteByParentId(parentId) > 0;
     }
+
+    /**
+     * 获取所有文件
+     */
+    @Override
+    public List<TDatasetFiles> getAllFiles() {
+        return datasetFilesMapper.selectAll();
+    }
 } 
\ No newline at end of file
diff --git a/chat-server/src/main/resources/com/bjtds/brichat/mapper/opengauss/TDatasetFilesMapper.xml b/chat-server/src/main/resources/com/bjtds/brichat/mapper/opengauss/TDatasetFilesMapper.xml
index 0181d23..b9b09a2 100644
--- a/chat-server/src/main/resources/com/bjtds/brichat/mapper/opengauss/TDatasetFilesMapper.xml
+++ b/chat-server/src/main/resources/com/bjtds/brichat/mapper/opengauss/TDatasetFilesMapper.xml
@@ -255,4 +255,11 @@
         DELETE FROM t_dataset_files
         WHERE parent_id = #{parentId}
     </delete>
+    <!-- 查询所有文件 -->
+    <select id="selectAll" resultMap="TDatasetFilesResultMap">
+        SELECT <include refid="Base_Column_List"/>
+        FROM t_dataset_files
+        WHERE type = 'file'
+        ORDER BY created_at DESC
+    </select>
 </mapper> 
\ No newline at end of file