diff --git a/src/services/wiki/index.ts b/src/services/wiki/index.ts
index 271fa9e9..5d8b983b 100644
--- a/src/services/wiki/index.ts
+++ b/src/services/wiki/index.ts
@@ -566,10 +566,18 @@ export class Wiki implements IWikiService {
       const syncDebounceInterval = await this.preferenceService.get('syncDebounceInterval');
       this.wikiSyncIntervals[id] = setInterval(async () => {
         await this.syncWikiIfNeeded(workspace);
+        // sync all subwiki together, if main workspace set to sync
+        await this.syncAllSubWikiIfNeeded(workspace);
       }, syncDebounceInterval);
     }
   }
 
+  private async syncAllSubWikiIfNeeded(workspace: IWorkspace) {
+    const workspaces = await this.workspaceService.getWorkspacesAsList();
+    const subWikiWorkspaces = workspaces.filter((w) => w.mainWikiID === workspace.id);
+    await Promise.all(subWikiWorkspaces.map((w) => this.syncWikiIfNeeded(w)));
+  }
+
   private stopIntervalSync(workspace: IWorkspace): void {
     const { id } = workspace;
     if (typeof this.wikiSyncIntervals[id] === 'number') {