diff --git a/apps/web/src/components/voice/CloneModal.tsx b/apps/web/src/components/voice/CloneModal.tsx
index b962f2938..1162fda71 100644
--- a/apps/web/src/components/voice/CloneModal.tsx
+++ b/apps/web/src/components/voice/CloneModal.tsx
@@ -14,7 +14,8 @@ import React, { useState, useCallback, useRef, useEffect } from "react";
 import { Modal, Button } from "@/components/ui";
 import { createVoiceClone, toVoiceClone } from "@/api/voiceClone";
 import type { VoiceClone } from "@/api/voiceClone";
-import { uploadAsset } from "@/api/assets";
+import { uploadAsset, ensureDefaultLibrary } from "@/api/assets";
+import { getOrCreateDefaultProject } from "@/api/projects";
 import "./clone-modal.css";
 
 /* ── 类型定义 ───────────────────────────────────────────── */
@@ -334,8 +335,14 @@ const CloneModal: React.FC<CloneModalProps> = ({
         );
       }
 
+      // 获取默认项目和素材库（后端 /upload 接口必填）
+      const project = await getOrCreateDefaultProject();
+      const library = await ensureDefaultLibrary({ project_id: project.id, kind: "voice" });
+
       const formData = new FormData();
       formData.append("file", fileToUpload);
+      formData.append("project_id", project.id);
+      formData.append("library_id", library.id);
       const uploadResult = await uploadAsset(formData);
 
       // 阶段 2：克隆