diff --git a/frontend-web/src/core/studio/api.ts b/frontend-web/src/core/studio/api.ts
index 16e8d90a..29dff88e 100644
--- a/frontend-web/src/core/studio/api.ts
+++ b/frontend-web/src/core/studio/api.ts
@@ -78,6 +78,28 @@ export async function fetchDocumentByChunk(
   return res.json() as Promise<DocumentWithChunks>;
 }
 
+export async function uploadSourceFiles(
+  notebookId: number,
+  files: File[],
+  token: string,
+): Promise<void> {
+  const apiBase = base();
+  if (!apiBase) throw new Error("VITE_NOTEBOOK_API_BASE_URL 未配置");
+
+  const formData = new FormData();
+  formData.append("search_space_id", String(notebookId));
+  for (const file of files) {
+    formData.append("files", file);
+  }
+
+  const res = await fetch(`${apiBase}/api/v1/documents/fileupload`, {
+    method: "POST",
+    headers: { Authorization: `Bearer ${token}` },
+    body: formData,
+  });
+  if (!res.ok) throw new Error(`上传失败：${res.status}`);
+}
+
 export async function fetchNotebookSources(
   notebookId: number,
   token: string,
diff --git a/frontend-web/src/pages/StudioNotebookDetailPage.tsx b/frontend-web/src/pages/StudioNotebookDetailPage.tsx
index 71af9c3f..67a4fd2c 100644
--- a/frontend-web/src/pages/StudioNotebookDetailPage.tsx
+++ b/frontend-web/src/pages/StudioNotebookDetailPage.tsx
@@ -1,6 +1,6 @@
 "use client";
 
-import { useEffect, useMemo, useState } from "react";
+import { useEffect, useMemo, useRef, useState } from "react";
 import { useParams } from "react-router-dom";
 import {
   AlignLeft,
@@ -23,7 +23,7 @@ import {
   DialogTitle,
 } from "@/components/ui/dialog";
 import { useNotebookChat, useNotebookSources, useNotebookThreads, useStudioNotebooks } from "@/core/studio/hooks";
-import { fetchDocumentByChunk } from "@/core/studio/api";
+import { fetchDocumentByChunk, uploadSourceFiles } from "@/core/studio/api";
 import type { DocumentWithChunks } from "@/core/studio/api";
 import type { SourceItem } from "@/core/studio/types";
 import { getStoredAuth } from "@/core/auth";
@@ -103,24 +103,52 @@ function SourceCardSkeleton() {
   );
 }
 
+const UPLOAD_ACCEPT = ".pdf,.docx,.xlsx,.pptx,.html,.csv,.md,.txt,.jpg,.jpeg,.png,.bmp,.webp,.tiff,.mp3,.mp4,.wav,.webm";
+
 // ── 来源 Dialog ─────────────────────────────────────────
 function SourcesDialog({
   open,
   onClose,
   notebookName,
+  notebookId,
+  token,
   sources,
   isLoadingSources,
   selectedSourceIds,
   onToggle,
+  onUploadSuccess,
 }: {
   open: boolean;
   onClose: () => void;
   notebookName: string;
+  notebookId: number;
+  token: string;
   sources: SourceItem[];
   isLoadingSources: boolean;
   selectedSourceIds: number[];
   onToggle: (id: number) => void;
+  onUploadSuccess: () => void;
 }) {
+  const fileInputRef = useRef<HTMLInputElement>(null);
+  const [uploading, setUploading] = useState(false);
+  const [uploadError, setUploadError] = useState("");
+
+  const handleFileChange = async (e: React.ChangeEvent<HTMLInputElement>) => {
+    const files = Array.from(e.target.files ?? []);
+    if (!files.length) return;
+    setUploading(true);
+    setUploadError("");
+    try {
+      await uploadSourceFiles(notebookId, files, token);
+      onUploadSuccess();
+    } catch (err) {
+      setUploadError(err instanceof Error ? err.message : "上传失败");
+    } finally {
+      setUploading(false);
+      if (fileInputRef.current) fileInputRef.current.value = "";
+    }
+  };
+
   return (
     <Dialog open={open} onOpenChange={(v) => !v && onClose()}>
       <DialogContent
@@ -144,8 +172,23 @@ function SourcesDialog({
 
         <div className="flex min-h-0 flex-1 overflow-hidden">
           <div className="flex w-44 shrink-0 flex-col gap-1 border-r border-border p-3">
+            <input
+              ref={fileInputRef}
+              type="file"
+              multiple
+              accept={UPLOAD_ACCEPT}
+              className="hidden"
+              onChange={(e) => { void handleFileChange(e); }}
+            />
+            <button
+              disabled={uploading}
+              onClick={() => fileInputRef.current?.click()}
+              className="flex items-center gap-2.5 rounded-xl px-3 py-2.5 text-sm text-muted-foreground transition-colors hover:bg-muted hover:text-foreground disabled:opacity-50"
+            >
+              {uploading ? <Loader2 className="size-4 shrink-0 animate-spin" /> : <Plus className="size-4 shrink-0" />}
+              <span className="text-left leading-tight">上传文件</span>
+            </button>
             {[
-              { icon: Plus, label: "上传文件" },
               { icon: CloudUpload, label: "从云端硬盘添加" },
               { icon: Globe, label: "添加网站" },
               { icon: AlignLeft, label: "复制的文字" },
@@ -158,6 +201,9 @@ function SourcesDialog({
                 <span className="text-left leading-tight">{label}</span>
               </button>
             ))}
+            {uploadError && (
+              <p className="px-3 text-xs text-destructive">{uploadError}</p>
+            )}
           </div>
 
           <div className="flex-1 overflow-y-auto p-4">
@@ -496,10 +542,15 @@ export default function StudioNotebookDetailPage() {
         open={sourcesOpen}
         onClose={() => setSourcesOpen(false)}
         notebookName={notebook.name}
+        notebookId={notebook.id}
+        token={queryClient.getQueryData<string>(["studio", "token", getStoredAuth()?.email ?? ""]) ?? ""}
         sources={sources}
         isLoadingSources={isLoadingSources}
         selectedSourceIds={selectedSourceIds}
         onToggle={handleToggleSource}
+        onUploadSuccess={() => {
+          void queryClient.invalidateQueries({ queryKey: ["studio", "sources", notebook.id] });
+        }}
       />
     </div>
     </ChatBox>