diff --git a/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/ByteAssetApiController.java b/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/ByteAssetApiController.java
index cc1b12c..0b9d404 100644
--- a/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/ByteAssetApiController.java
+++ b/web-api/ruoyi-admin/src/main/java/com/ruoyi/api/ByteAssetApiController.java
@@ -41,12 +41,12 @@ public class ByteAssetApiController extends BaseController {
     @PostMapping(value = "/createAsset", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
     @ApiOperation("CreateAsset：先将文件上传至对象存储，再调用 CreateAsset")
     public AjaxResult<CreateAssetResponse> createAsset(
-            @ApiParam(value = "素材文件", required = true) @RequestPart("file") MultipartFile file,
+            @ApiParam(value = "素材url", required = true) @RequestParam("url") String url,
             @ApiParam(value = "所属素材组 id（GroupId）", required = true) @RequestParam("groupId") String groupId,
             @ApiParam(value = "素材类型：Image / Video / Audio", required = true) @RequestParam("assetType") String assetType,
             @ApiParam(value = "素材名称，可选") @RequestParam(value = "name", required = false) String name) {
         try {
-            return AjaxResult.success(byteAssetService.createAsset(file, groupId, assetType, name));
+            return AjaxResult.success(byteAssetService.createAsset(url, groupId, assetType, name));
         } catch (Exception e) {
             log.error("创建素材时发生异常", e);
             return AjaxResult.error(e.getMessage());
diff --git a/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/IByteAssetService.java b/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/IByteAssetService.java
index d420281..6d01074 100644
--- a/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/IByteAssetService.java
+++ b/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/IByteAssetService.java
@@ -17,7 +17,7 @@ public interface IByteAssetService {
     /**
      * 先将文件上传至对象存储得到公网 URL，再调用 CreateAsset。
      */
-    CreateAssetResponse createAsset(MultipartFile file, String groupId, String assetType, String name) throws Exception;
+    CreateAssetResponse createAsset(String url, String groupId, String assetType, String name) throws Exception;
 
     ListAssetsResponse listAssets(ListAssetsRequest request) throws IOException;
 
diff --git a/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/ByteAssetService.java b/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/ByteAssetService.java
index fc66618..6c4019c 100644
--- a/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/ByteAssetService.java
+++ b/web-api/ruoyi-system/src/main/java/com/ruoyi/ai/service/impl/ByteAssetService.java
@@ -32,17 +32,13 @@ public class ByteAssetService extends BaseByteApiService implements IByteAssetSe
     private static final String ACTION_DELETE_ASSET = "DeleteAsset";
 
     @Override
-    public CreateAssetResponse createAsset(MultipartFile file, String groupId, String assetType, String name) throws Exception {
-        if (file == null || file.isEmpty()) {
-            throw new IllegalArgumentException("上传文件不能为空");
+    public CreateAssetResponse createAsset(String url, String groupId, String assetType, String name) throws Exception {
+        if (StringUtils.isBlank(groupId) || StringUtils.isBlank(groupId) || StringUtils.isBlank(assetType)) {
+            throw new IllegalArgumentException("url、groupId、assetType 不能为空");
         }
-        if (StringUtils.isBlank(groupId) || StringUtils.isBlank(assetType)) {
-            throw new IllegalArgumentException("groupId、assetType 不能为空");
-        }
-        String publicUrl = tencentCosUtil.uploadMultipartFile(file, true);
         CreateAssetRequest request = new CreateAssetRequest();
         request.setGroupId(groupId);
-        request.setUrl(publicUrl);
+        request.setUrl(url);
         request.setName(name);
         request.setAssetType(assetType);
         request.setProjectName(getUserProject());