diff --git a/packages/data-center/src/datacenter.ts b/packages/data-center/src/datacenter.ts
index 2fc9431e93..00ca590ae3 100644
--- a/packages/data-center/src/datacenter.ts
+++ b/packages/data-center/src/datacenter.ts
@@ -17,7 +17,6 @@ import { applyUpdate, encodeStateAsUpdate } from 'yjs';
 export class DataCenter {
   private readonly _workspaces = new Workspaces();
   private readonly _logger = getLogger('dc');
-  private readonly _blobStorage: BlobStorage = new BlobStorage();
   /**
    * A mainProvider must exist as the only data trustworthy source.
    */
@@ -35,14 +34,12 @@ export class DataCenter {
       new LocalProvider({
         logger: dc._logger,
         workspaces: dc._workspaces.createScope(),
-        blobs: dc._blobStorage,
       })
     );
     dc.registerProvider(
       new AffineProvider({
         logger: dc._logger,
         workspaces: dc._workspaces.createScope(),
-        blobs: dc._blobStorage,
       })
     );
 
@@ -335,21 +332,21 @@ export class DataCenter {
     return;
   }
 
-  /**
-   * get blob url by workspaces id
-   * @param id
-   * @returns {Promise<string | null>} blob url
-   */
-  async getBlob(id: string): Promise<string | null> {
-    return await this._blobStorage.get(id);
-  }
+  // /**
+  //  * get blob url by workspaces id
+  //  * @param id
+  //  * @returns {Promise<string | null>} blob url
+  //  */
+  // async getBlob(id: string): Promise<string | null> {
+  //   return await this._blobStorage.get(id);
+  // }
 
-  /**
-   * up load blob and get a blob url
-   * @param id
-   * @returns {Promise<string | null>} blob url
-   */
-  async setBlob(blob: Blob): Promise<string> {
-    return await this._blobStorage.set(blob);
-  }
+  // /**
+  //  * up load blob and get a blob url
+  //  * @param id
+  //  * @returns {Promise<string | null>} blob url
+  //  */
+  // async setBlob(blob: Blob): Promise<string> {
+  //   return await this._blobStorage.set(blob);
+  // }
 }
diff --git a/packages/data-center/src/provider/affine/affine.ts b/packages/data-center/src/provider/affine/affine.ts
index 0f78ba7048..cb9b1704d3 100644
--- a/packages/data-center/src/provider/affine/affine.ts
+++ b/packages/data-center/src/provider/affine/affine.ts
@@ -246,19 +246,12 @@ export class AffineProvider extends BaseProvider {
     meta: WorkspaceMeta
   ): Promise<Workspace | undefined> {
     assert(meta.name, 'Workspace name is required');
-    if (!meta.avatar) {
-      // set default avatar
-      const blob = await getDefaultHeadImgBlob(meta.name);
-      const blobId = await this.setBlob(blob);
-      meta.avatar = (await this.getBlob(blobId)) || '';
-    }
     const { id } = await createWorkspace(meta as Required<WorkspaceMeta>);
     this._logger('Creating affine workspace');
     const nw = new Workspace({
       room: id,
     }).register(BlockSchema);
     nw.meta.setName(meta.name);
-    nw.meta.setAvatar(meta.avatar);
     this._initWorkspaceDb(nw);
 
     const workspaceInfo: WS = {
@@ -272,6 +265,18 @@ export class AffineProvider extends BaseProvider {
       provider: 'local',
     };
 
+    if (!meta.avatar) {
+      // set default avatar
+      const blob = await getDefaultHeadImgBlob(meta.name);
+      const blobStorage = await nw.blobs;
+      assert(blobStorage, 'No blob storage');
+      const blobId = await blobStorage.set(blob);
+      const avatar = await blobStorage.get(blobId);
+      if (avatar) {
+        nw.meta.setAvatar(avatar);
+        workspaceInfo.avatar = avatar;
+      }
+    }
     this._workspaces.add(workspaceInfo);
     return nw;
   }
diff --git a/packages/data-center/src/provider/base.ts b/packages/data-center/src/provider/base.ts
index 62fc943ebd..249a536f21 100644
--- a/packages/data-center/src/provider/base.ts
+++ b/packages/data-center/src/provider/base.ts
@@ -9,19 +9,16 @@ const defaultLogger = () => {
 export interface ProviderConstructorParams {
   logger?: Logger;
   workspaces: WorkspacesScope;
-  blobs: BlobStorage;
 }
 
 export class BaseProvider {
   public readonly id: string = 'base';
   protected _workspaces!: WorkspacesScope;
   protected _logger!: Logger;
-  protected _blobs!: BlobStorage;
 
-  public constructor({ logger, workspaces, blobs }: ProviderConstructorParams) {
+  public constructor({ logger, workspaces }: ProviderConstructorParams) {
     this._logger = (logger || defaultLogger) as Logger;
     this._workspaces = workspaces;
-    this._blobs = blobs;
   }
 
   /**
@@ -69,19 +66,19 @@ export class BaseProvider {
     return;
   }
 
-  async getBlob(id: string): Promise<string | null> {
-    return await this._blobs.get(id);
-  }
+  // async getBlob(id: string): Promise<string | null> {
+  //   return await this._blobs.get(id);
+  // }
 
-  async setBlob(blob: Blob): Promise<string> {
-    return await this._blobs.set(blob);
-  }
+  // async setBlob(blob: Blob): Promise<string> {
+  //   return await this._blobs.set(blob);
+  // }
 
   /**
    * clear all local data in provider
    */
   async clear() {
-    this._blobs.clear();
+    // this._blobs.clear();
   }
 
   /**
diff --git a/packages/data-center/src/provider/local/local.ts b/packages/data-center/src/provider/local/local.ts
index c8c0480ab5..fb73ccce42 100644
--- a/packages/data-center/src/provider/local/local.ts
+++ b/packages/data-center/src/provider/local/local.ts
@@ -79,12 +79,6 @@ export class LocalProvider extends BaseProvider {
     meta: WorkspaceMeta
   ): Promise<Workspace | undefined> {
     assert(meta.name, 'Workspace name is required');
-    if (!meta.avatar) {
-      // set default avatar
-      const blob = await getDefaultHeadImgBlob(meta.name);
-      const blobId = await this.setBlob(blob);
-      meta.avatar = (await this.getBlob(blobId)) || '';
-    }
     this._logger('Creating affine workspace');
 
     const workspaceInfo: WS = {
@@ -101,7 +95,18 @@ export class LocalProvider extends BaseProvider {
     const workspace = new Workspace({ room: workspaceInfo.id });
     this._initWorkspaceDb(workspace);
     workspace.meta.setName(meta.name);
-    workspace.meta.setAvatar(meta.avatar);
+    if (!meta.avatar) {
+      // set default avatar
+      const blob = await getDefaultHeadImgBlob(meta.name);
+      const blobStorage = await workspace.blobs;
+      assert(blobStorage, 'No blob storage');
+      const blobId = await blobStorage.set(blob);
+      const avatar = await blobStorage.get(blobId);
+      if (avatar) {
+        workspace.meta.setAvatar(avatar);
+        workspaceInfo.avatar = avatar;
+      }
+    }
 
     this._workspaces.add(workspaceInfo);
     this._storeWorkspaces(this._workspaces.list());