diff --git a/frontend/src/pages/DataManagement/Detail/components/Overview.tsx b/frontend/src/pages/DataManagement/Detail/components/Overview.tsx
index 5def6069..bf4d942c 100644
--- a/frontend/src/pages/DataManagement/Detail/components/Overview.tsx
+++ b/frontend/src/pages/DataManagement/Detail/components/Overview.tsx
@@ -1,4 +1,4 @@
-import { App, Button, Descriptions, DescriptionsProps, Modal, Table, Input } from "antd";
+import { App, Button, Descriptions, DescriptionsProps, Modal, Table, Input, Spin } from "antd";
 import { formatBytes, formatDateTime } from "@/utils/unit";
 import { Download, Trash2, Folder, File } from "lucide-react";
 import { datasetTypeMap } from "../../dataset.const";
@@ -13,6 +13,9 @@ export default function Overview({ dataset, filesOperation, fetchDataset }) {
     previewVisible,
     previewFileName,
     previewContent,
+    previewUrl,
+    previewFileDetail,
+    previewLoading,
     setPreviewVisible,
     handleDeleteFile,
     handleDownloadFile,
@@ -23,6 +26,7 @@ export default function Overview({ dataset, filesOperation, fetchDataset }) {
     handleDeleteDirectory,
     handleRenameFile,
     handleRenameDirectory,
+    handlePreviewFile,
   } = filesOperation;
 
   // 文件列表多选配置
@@ -142,7 +146,7 @@ export default function Overview({ dataset, filesOperation, fetchDataset }) {
         return (
             <Button
               type="link"
-              onClick={(e) => {}}
+              onClick={() => handlePreviewFile(record)}
             >
               {content}
             </Button>
@@ -453,18 +457,101 @@ export default function Overview({ dataset, filesOperation, fetchDataset }) {
         open={previewVisible}
         onCancel={() => setPreviewVisible(false)}
         footer={null}
-        width={700}
+        width={1000}
       >
-        <pre
-          style={{
-            whiteSpace: "pre-wrap",
-            wordBreak: "break-all",
-            fontSize: 14,
-            color: "#222",
-          }}
-        >
-          {previewContent}
-        </pre>
+        <div className="flex gap-4" style={{ minHeight: 400 }}>
+          {/* 左侧预览区域 */}
+          <div className="flex-1 border border-gray-200 rounded-md p-3 flex items-center justify-center overflow-auto bg-gray-50">
+            {previewLoading ? (
+              <Spin />
+            ) : previewUrl ? (
+              <img
+                src={previewUrl}
+                alt={previewFileName}
+                style={{
+                  maxWidth: "100%",
+                  maxHeight: 500,
+                  objectFit: "contain",
+                }}
+              />
+            ) : previewContent ? (
+              <pre
+                style={{
+                  whiteSpace: "pre-wrap",
+                  wordBreak: "break-all",
+                  fontSize: 14,
+                  color: "#222",
+                  maxHeight: 500,
+                }}
+              >
+                {previewContent}
+              </pre>
+            ) : (
+              <span className="text-gray-500 text-sm">
+                暂无预览内容，或当前文件类型暂不支持预览。
+              </span>
+            )}
+          </div>
+
+          {/* 右侧文件信息（来自 t_dm_dataset_files） */}
+          <div className="w-72 border border-gray-200 rounded-md p-3 bg-white overflow-auto">
+            <h3 className="text-sm font-semibold mb-3">文件信息</h3>
+            <div className="space-y-2 text-xs text-gray-700">
+              <div>
+                <span className="text-gray-500">文件名：</span>
+                <span>{previewFileDetail?.fileName || previewFileName}</span>
+              </div>
+              {previewFileDetail?.originalName && (
+                <div>
+                  <span className="text-gray-500">原始文件名：</span>
+                  <span>{previewFileDetail.originalName}</span>
+                </div>
+              )}
+              {previewFileDetail?.fileType && (
+                <div>
+                  <span className="text-gray-500">文件类型：</span>
+                  <span>{previewFileDetail.fileType}</span>
+                </div>
+              )}
+              {typeof previewFileDetail?.fileSize === "number" && (
+                <div>
+                  <span className="text-gray-500">文件大小：</span>
+                  <span>{formatBytes(previewFileDetail.fileSize || 0)}</span>
+                </div>
+              )}
+              {previewFileDetail?.status && (
+                <div>
+                  <span className="text-gray-500">状态：</span>
+                  <span>{previewFileDetail.status}</span>
+                </div>
+              )}
+              {previewFileDetail?.uploadTime && (
+                <div>
+                  <span className="text-gray-500">上传时间：</span>
+                  <span>{formatDateTime(previewFileDetail.uploadTime)}</span>
+                </div>
+              )}
+              {previewFileDetail?.uploadedBy && (
+                <div>
+                  <span className="text-gray-500">上传者：</span>
+                  <span>{previewFileDetail.uploadedBy}</span>
+                </div>
+              )}
+              {previewFileDetail?.filePath && (
+                <div>
+                  <span className="text-gray-500">文件路径：</span>
+                  <span>{previewFileDetail.filePath}</span>
+                </div>
+              )}
+              {previewFileDetail?.description && (
+                <div>
+                  <span className="text-gray-500">描述：</span>
+                  <span>{previewFileDetail.description}</span>
+                </div>
+              )}
+            </div>
+          </div>
+        </div>
       </Modal>
     </>
   );
diff --git a/frontend/src/pages/DataManagement/Detail/useFilesOperation.ts b/frontend/src/pages/DataManagement/Detail/useFilesOperation.ts
index 88318013..64c852e0 100644
--- a/frontend/src/pages/DataManagement/Detail/useFilesOperation.ts
+++ b/frontend/src/pages/DataManagement/Detail/useFilesOperation.ts
@@ -35,6 +35,9 @@ export function useFilesOperation(dataset: Dataset) {
   const [previewVisible, setPreviewVisible] = useState(false);
   const [previewContent, setPreviewContent] = useState("");
   const [previewFileName, setPreviewFileName] = useState("");
+  const [previewUrl, setPreviewUrl] = useState<string | undefined>();
+  const [previewFileDetail, setPreviewFileDetail] = useState<any | undefined>();
+  const [previewLoading, setPreviewLoading] = useState(false);
 
   const fetchFiles = async (prefix?: string, current?, pageSize?) => {
     // 如果明确传了 prefix（包括空字符串），使用传入的值；否则使用当前 pagination.prefix
@@ -88,16 +91,47 @@ export function useFilesOperation(dataset: Dataset) {
     setSelectedFiles([]); // 清空选中状态
   };
 
-  const handleShowFile = (file: any) => async () => {
-    // 请求文件内容并弹窗预览
+  const isImageFile = (fileName?: string, fileType?: string) => {
+    const lowerType = (fileType || "").toLowerCase();
+    if (lowerType.includes("image")) return true;
+    const name = (fileName || "").toLowerCase();
+    return [".png", ".jpg", ".jpeg", ".gif", ".webp", ".bmp"].some((ext) =>
+      name.endsWith(ext)
+    );
+  };
+
+  const handlePreviewFile = async (file: any) => {
+    if (!file || !file.id) return;
+    const datasetId = dataset.id;
+    setPreviewVisible(true);
+    setPreviewLoading(true);
+    setPreviewFileName(file.fileName || "");
+    setPreviewContent("");
+    setPreviewUrl(undefined);
+    setPreviewFileDetail(undefined);
     try {
-      const res = await fetch(`/api/datasets/${dataset.id}/file/${file.id}`);
-      const data = await res.text();
-      setPreviewFileName(file.fileName);
-      setPreviewContent(data);
-      setPreviewVisible(true);
-    } catch (err) {
+      // 获取文件元信息（来自 t_dm_dataset_files）
+      const detailRes: any = await (await import("../dataset.api")).getDatasetFileByIdUsingGet(
+        datasetId,
+        file.id
+      );
+      const detail = detailRes?.data || detailRes;
+      setPreviewFileDetail(detail);
+
+      const downloadUrl = `/api/data-management/datasets/${datasetId}/files/${file.id}/download`;
+      const image = isImageFile(detail?.fileName || file.fileName, detail?.fileType);
+
+      if (image) {
+        setPreviewUrl(downloadUrl);
+      } else {
+        const res = await fetch(downloadUrl);
+        const text = await res.text();
+        setPreviewContent(text);
+      }
+    } catch (error) {
       message.error({ content: "文件预览失败" });
+    } finally {
+      setPreviewLoading(false);
     }
   };
 
@@ -141,13 +175,16 @@ export function useFilesOperation(dataset: Dataset) {
     setPreviewVisible,
     previewContent,
     previewFileName,
+      previewUrl,
+      previewFileDetail,
+      previewLoading,
     setPreviewContent,
     setPreviewFileName,
     fetchFiles,
     setFileList,
     handleBatchDeleteFiles,
     handleDownloadFile,
-    handleShowFile,
+    handlePreviewFile,
     handleDeleteFile,
     handleBatchExport,
     handleCreateDirectory: async (directoryName: string) => {
diff --git a/frontend/src/pages/DataManagement/dataset.api.ts b/frontend/src/pages/DataManagement/dataset.api.ts
index 8ef3e0fd..f6d4e3f3 100644
--- a/frontend/src/pages/DataManagement/dataset.api.ts
+++ b/frontend/src/pages/DataManagement/dataset.api.ts
@@ -49,6 +49,16 @@ export function queryDatasetFilesUsingGet(id: string | number, params?: any) {
   return get(`/api/data-management/datasets/${id}/files`, params);
 }
 
+// 根据ID获取单个数据集文件详情
+export function getDatasetFileByIdUsingGet(
+  datasetId: string | number,
+  fileId: string | number
+) {
+  return get(
+    `/api/data-management/datasets/${datasetId}/files/${fileId}`
+  );
+}
+
 // 上传数据集文件
 export function uploadDatasetFileUsingPost(id: string | number, data: any) {
   return post(`/api/data-management/datasets/${id}/files`, data);
diff --git a/runtime/datamate-python/app/module/annotation/interface/auto.py b/runtime/datamate-python/app/module/annotation/interface/auto.py
index 5c8638eb..9239eeb4 100644
--- a/runtime/datamate-python/app/module/annotation/interface/auto.py
+++ b/runtime/datamate-python/app/module/annotation/interface/auto.py
@@ -9,7 +9,7 @@
 """
 from __future__ import annotations
 
-from typing import List, Optional, Dict
+from typing import List, Optional, Dict, Any
 
 from fastapi import APIRouter, Depends, HTTPException, Path
 from fastapi.responses import StreamingResponse