diff --git a/src/apps/draw/pages/core/Excalidraw.tsx b/src/apps/draw/pages/core/Excalidraw.tsx
index 4522afd..4c890fa 100644
--- a/src/apps/draw/pages/core/Excalidraw.tsx
+++ b/src/apps/draw/pages/core/Excalidraw.tsx
@@ -12,6 +12,7 @@ import { toast } from 'react-toastify';
 import { hashFile } from '../../modules/hash-file';
 import { uploadChunkV2 } from '../../modules/upload';
 import { downloadFile, toFile } from '../../modules/to-file';
+import dayjs from 'dayjs';
 
 type ImageResource = {};
 export const ImagesResources = (props: ImageResource) => {
@@ -207,9 +208,11 @@ export const Core = ({ onClose, id }: CoreProps) => {
       for (const file of files) {
         if (file.dataURL.startsWith('data')) {
           const _file = toFile(file.dataURL, file.id);
+          const day = dayjs().format('YYYY-MM');
+          const directory = `excalidraw/${day}/${id}`;
           const res = (await uploadChunkV2(_file, {
             filename: file.id,
-            directory: id,
+            directory: directory,
           })) as any;
           if (res.code === 200) {
             toast.success('上传图片成功');