diff --git a/frontend/src/component/file/content.tsx b/frontend/src/component/file/content.tsx
index b30058c..6d208f3 100644
--- a/frontend/src/component/file/content.tsx
+++ b/frontend/src/component/file/content.tsx
@@ -4,6 +4,7 @@ import {makeStyles} from "@fluentui/react-components";
 import {useStoreBucket} from "../../store/bucket";
 import {ListFileComponent} from "./list_file";
 import {useState} from "react";
+import {PreviewFile} from "../preview/preview";
 
 const useStyles = makeStyles({
     content: {
@@ -18,14 +19,17 @@ const useStyles = makeStyles({
 export function Content() {
 
     const styles = useStyles()
-    const {bucket_active } = useStoreBucket()
+    const [preview, set_preview] = useState<{ url: string, content_type: string }>({url: '', content_type: ''})
+    const {bucket_active} = useStoreBucket()
 
     return <div className={styles.content}>
-        <Path />
+        <Path/>
         {
-            bucket_active ?
-                <ListFileComponent/> :
-                <ListBucketComponent/>
+            preview.url ? <PreviewFile url={preview.url} content_type={preview.content_type}/> :
+                (
+                    bucket_active ?
+                        <ListFileComponent set_preview_fn={set_preview}/> : <ListBucketComponent/>
+                )
         }
     </div>
 }
\ No newline at end of file
diff --git a/frontend/src/component/file/list_file.tsx b/frontend/src/component/file/list_file.tsx
index 5dce090..57df0d8 100644
--- a/frontend/src/component/file/list_file.tsx
+++ b/frontend/src/component/file/list_file.tsx
@@ -24,6 +24,7 @@ import {TrimSuffix} from "../../hook/strings";
 import {Dial} from "../../api";
 import {useToast} from "../../message";
 import {CanPreview} from "../../hook/preview";
+import {useStorePreview} from "../../store/preview";
 
 const useStyles = makeStyles({
     container: {
@@ -87,7 +88,11 @@ const useStyles = makeStyles({
 })
 
 
-export function ListFileComponent() {
+export interface ListFileComponentProps {
+    set_preview_fn: React.Dispatch<React.SetStateAction<{url:string, content_type: string}>>
+}
+
+export function ListFileComponent(props: ListFileComponentProps) {
 
     const styles = useStyles();
     const {dispatchMessage} = useToast();
@@ -95,6 +100,8 @@ export function ListFileComponent() {
     const {bucket_active} = useStoreBucket()
     const {file_active, files_get, file_set, files_list} = useStoreFile()
     const {prefix, filter, prefix_set} = useStoreFileFilter()
+    const [preview_content_type, set_preview_content_type] = useState('')
+    const {preview_get} = useStorePreview()
     const [ctx_menu, set_ctx_menu] = useState<{
         x: number,
         y: number,
@@ -115,7 +122,7 @@ export function ListFileComponent() {
     useEffect(() => {
         set_loading(true)
         files_get(conn_active!, bucket_active!, prefix, filter).then(() => {
-            // set_loading(false)
+            set_loading(false)
         })
     }, [conn_active, bucket_active, prefix, filter]);
 
@@ -134,6 +141,7 @@ export function ListFileComponent() {
     async function handleRightClick(e: React.MouseEvent<HTMLDivElement>, item: S3File) {
         e.preventDefault()
         await file_set(item.key)
+        set_preview_content_type(CanPreview(item.name))
         const ele = document.querySelector('#list-file-container')
         let eleX = ele ? ele.clientWidth : 0
         let eleY = ele ? ele.clientHeight : 0
@@ -167,7 +175,16 @@ export function ListFileComponent() {
     }
 
     async function handlePreview() {
-        dispatchMessage('todo', 'warning')
+        const res = await Dial<{url:string, method: string}>('/api/file/get', {
+            conn_id: conn_active?.id,
+            bucket: bucket_active?.name,
+            key: file_active ?? "",
+        })
+        if (res.status !== 200) {
+            dispatchMessage('预览失败', 'warning')
+            return
+        }
+        props.set_preview_fn({url: res.data.url, content_type: preview_content_type})
     }
 
     return <div className={styles.container}>
@@ -183,7 +200,7 @@ export function ListFileComponent() {
                     }}
                     icon={<ArrowDownloadFilled/>}>下载</MenuItem>
                 <MenuItem
-                    disabled={!CanPreview(file_active ?? '')}
+                    disabled={!preview_content_type}
                     onClick={async () => {
                         await handlePreview()
                     }}
@@ -194,47 +211,40 @@ export function ListFileComponent() {
         <div className={styles.loading} style={{display: loading ? 'flex' : 'none'}}>
             <Spinner appearance="primary" label="加载中..."/>
         </div>
-        {
-            // (!loading) && (files_list.length === 0) ?
-            //     <div className={styles.no_data}>
-            //         <div>
-            //             <DocumentDismissRegular/>
-            //         </div>
-            //         <Text size={900}>
-            //             没有文件
-            //         </Text>
-            //     </div>
-            //     : <></>
-        }
-        {
-            // (!loading && files_list) ?
-            //     <VirtualizerScrollView
-            //         numItems={files_list.length}
-            //         itemSize={32}
-            //         container={{role: 'list', style: {maxHeight: 'calc(100vh - 9rem)'}}}
-            //     >
-            //         {(idx) => {
-            //             return <div
-            //                 className={styles.row} key={idx}
-            //                 onClick={async () => {
-            //                     await handleClick(files_list[idx])
-            //                 }}
-            //                 onContextMenu={async (e) => {
-            //                     await handleRightClick(e, files_list[idx])
-            //                 }}>
-            //                 <MenuItem className={styles.item}
-            //                           icon={files_list[idx].type ? <FolderRegular/> :
-            //                               <FileIcon name={files_list[idx].name}/>}>
-            //                     <Text truncate wrap={false} className={styles.text}>
-            //                         {filename(files_list[idx].key)}
-            //                     </Text>
-            //                 </MenuItem>
-            //             </div>
-            //         }}
-            //     </VirtualizerScrollView> : <></>
-        }
-        <MenuList className={styles.list}>
-        </MenuList>
+        <div className={styles.no_data} style={{display: (!loading && !files_list.length) ? 'flex' : 'none'}}>
+            <div>
+                <DocumentDismissRegular/>
+            </div>
+            <Text size={900}>
+                没有文件
+            </Text>
+        </div>
+        <div style={{display: (!loading && files_list.length) ? 'block' : 'none'}}>
+            <VirtualizerScrollView
+                numItems={files_list.length}
+                itemSize={32}
+                container={{role: 'list', style: {maxHeight: 'calc(100vh - 9rem)'}}}
+            >
+                {(idx) => {
+                    return <div
+                        className={styles.row} key={idx}
+                        onClick={async () => {
+                            await handleClick(files_list[idx])
+                        }}
+                        onContextMenu={async (e) => {
+                            await handleRightClick(e, files_list[idx])
+                        }}>
+                        <MenuItem className={styles.item}
+                                  icon={files_list[idx].type ? <FolderRegular/> :
+                                      <FileIcon name={files_list[idx].name}/>}>
+                            <Text truncate wrap={false} className={styles.text}>
+                                {filename(files_list[idx].key)}
+                            </Text>
+                        </MenuItem>
+                    </div>
+                }}
+            </VirtualizerScrollView>
+        </div>
     </div>
 }
 
diff --git a/frontend/src/component/file/upload_files.tsx b/frontend/src/component/file/upload_files.tsx
index a8ebbf6..b0d5d02 100644
--- a/frontend/src/component/file/upload_files.tsx
+++ b/frontend/src/component/file/upload_files.tsx
@@ -12,7 +12,7 @@ import {useToast} from "../../message";
 import {Dial} from "../../api";
 import {useStoreConnection} from "../../store/connection";
 import {useStoreBucket} from "../../store/bucket";
-import {useStoreFile} from "../../store/file";
+import {useStoreFile, useStoreFileFilter} from "../../store/file";
 import {MoreHorizontalRegular} from "@fluentui/react-icons";
 
 const useStyle = makeStyles({
@@ -43,7 +43,8 @@ export function UploadFiles(props: UploadFilesProps) {
 
     const { conn_active} = useStoreConnection();
     const {bucket_active} = useStoreBucket();
-    const {prefix, files_get} = useStoreFile()
+    const {files_get} = useStoreFile()
+    const {prefix } = useStoreFileFilter()
 
     const [selected, set_selected] = useState<string[]>([]);
 
diff --git a/frontend/src/component/preview/preview.tsx b/frontend/src/component/preview/preview.tsx
index f8a75f6..2e43dc5 100644
--- a/frontend/src/component/preview/preview.tsx
+++ b/frontend/src/component/preview/preview.tsx
@@ -1,3 +1,21 @@
-export function PreviewFile() {
+import {CardPreview, makeStyles} from "@fluentui/react-components";
 
+const useStyle = makeStyles({
+    container: {
+        width: '100%',
+        height: '100%',
+        display: 'flex',
+        flexDirection: 'column',
+        alignItems: 'center',
+        justifyContent: 'center',
+    }
+})
+export function PreviewFile(props: {url:string, content_type:string}) {
+    const styles = useStyle()
+    return <div className={styles.container}>
+        <CardPreview
+        >
+            <img src={props.url} />
+        </CardPreview>
+    </div>
 }
\ No newline at end of file
diff --git a/frontend/src/store/preview.tsx b/frontend/src/store/preview.tsx
index ab7c798..bc77a60 100644
--- a/frontend/src/store/preview.tsx
+++ b/frontend/src/store/preview.tsx
@@ -1,18 +1,33 @@
 import {create} from 'zustand'
+import {Dial} from "../api";
 import {Bucket, Connection} from "../interfaces/connection";
 
 interface StorePreview {
-    preview_key: string;
     preview_url: string;
     preview_content_type: string;
-    preview_set: (key: string) => void;
+    preview_get: (conn:Connection,bucket: Bucket,key: string) => Promise<void>;
 }
 
 export const useStorePreview = create<StorePreview>()((set) => ({
-    preview_key: '',
     preview_url: '',
     preview_content_type: '',
-    preview_set: async (key: string) => set(state => {
-        return {preview_key: key}
-    }),
+    preview_get: async (conn: Connection, bucket: Bucket,key: string) => {
+        if (key === '') {
+            return set(()=>{return {preview_url: ''}})
+        }
+
+        let res = await Dial<{url:string,method:string}>('/api/file/get', {
+            conn_id: conn.id,
+            bucket: bucket.name,
+            key: key
+        })
+
+        if(res.status!=200) {
+           return set(()=>{return {preview_url: ''}})
+        }
+
+        set(()=>{
+            return {preview_url:res.data.url}
+        })
+    },
 }))
diff --git a/internal/s3/get.go b/internal/s3/get.go
index 7b682f1..22bffbc 100644
--- a/internal/s3/get.go
+++ b/internal/s3/get.go
@@ -12,10 +12,10 @@ import (
 )
 
 type ObjectInfo struct {
-	Bucket      string
-	Key         string
-	ContentType string
-	Expire      int64
+	Bucket      string `json:"bucket"`
+	Key         string `json:"key"`
+	ContentType string `json:"content_type"`
+	Expire      int64  `json:"expire"`
 }
 
 func (c *Client) GetObjectInfo(ctx context.Context, bucket string, key string) (*ObjectInfo, error) {
@@ -62,9 +62,9 @@ func (presigner *Presigner) GetObject(ctx context.Context, bucketName string, ob
 }
 
 type ObjectEntry struct {
-	URL    string
-	Method string
-	Header http.Header
+	URL    string      `json:"url"`
+	Method string      `json:"method"`
+	Header http.Header `json:"header"`
 }
 
 func (c *Client) GetObjectEntry(ctx context.Context, bucket string, key string, lifetimes ...int64) (*ObjectEntry, error) {
@@ -92,7 +92,7 @@ func (c *Client) GetObjectEntry(ctx context.Context, bucket string, key string,
 
 type ObjectEntity struct {
 	ObjectInfo
-	Body io.ReadCloser
+	Body io.ReadCloser `json:"body"`
 }
 
 func (c *Client) GetObject(ctx context.Context, bucket string, key string) (*ObjectEntity, error) {