diff --git a/src/langs/en.json b/src/langs/en.json
index e88f30e..751316e 100644
--- a/src/langs/en.json
+++ b/src/langs/en.json
@@ -53,6 +53,7 @@
   "statusbar_time_lessminute": "Synced last minute ago",
   "statusbar_lastsync": "Synced {{time}} ago",
   "statusbar_syncing": "Syncing...",
+  "statusbar_failed": "Last sync failed",
   "statusbar_now": "Synced just now",
   "statusbar_lastsync_label": "Last successful Sync on {{date}}",
   "statusbar_lastsync_never": "Never Synced",
diff --git a/src/langs/zh_cn.json b/src/langs/zh_cn.json
index 6bf21fc..473d4da 100644
--- a/src/langs/zh_cn.json
+++ b/src/langs/zh_cn.json
@@ -53,6 +53,7 @@
   "statusbar_time_lessminute": "一分钟之内同步",
   "statusbar_lastsync": "上一次同步于：{{time}}",
   "statusbar_syncing": "正在同步",
+  "statusbar_failed": "上次同步失败了",
   "statusbar_now": "刚同步完",
   "statusbar_lastsync_label": "上一次同步于：{{date}}",
   "statusbar_lastsync_never": "没触发过同步",
diff --git a/src/langs/zh_tw.json b/src/langs/zh_tw.json
index 21fbcc0..1eb8c1f 100644
--- a/src/langs/zh_tw.json
+++ b/src/langs/zh_tw.json
@@ -52,6 +52,7 @@
   "statusbar_time_lessminute": "一分鐘之內同步",
   "statusbar_lastsync": "上一次同步於：{{time}}",
   "statusbar_syncing": "正在同步",
+  "statusbar_failed": "上次同步失敗了",
   "statusbar_now": "剛同步完",
   "statusbar_lastsync_label": "上一次同步於：{{date}}",
   "statusbar_lastsync_never": "沒觸發過同步",
diff --git a/src/main.ts b/src/main.ts
index 4998bce..644d461 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -337,11 +337,15 @@ export default class RemotelySavePlugin extends Plugin {
       }
     };
 
-    const statusBarFunc = async (s: SyncTriggerSourceType, step: number) => {
+    const statusBarFunc = async (
+      s: SyncTriggerSourceType,
+      step: number,
+      everythingOk: boolean
+    ) => {
       if (step === 1) {
         // change status to "syncing..." on statusbar
         this.updateLastSuccessSyncMsg(-1);
-      } else if (step === 8) {
+      } else if (step === 8 && everythingOk) {
         const lastSuccessSyncMillis = Date.now();
         await upsertLastSuccessSyncTimeByVault(
           this.db,
@@ -349,6 +353,8 @@ export default class RemotelySavePlugin extends Plugin {
           lastSuccessSyncMillis
         );
         this.updateLastSuccessSyncMsg(lastSuccessSyncMillis);
+      } else if (!everythingOk) {
+        this.updateLastSuccessSyncMsg(-2); // magic number
       }
     };
 
@@ -1266,6 +1272,11 @@ export default class RemotelySavePlugin extends Plugin {
       lastSyncMsg = t("statusbar_syncing");
     }
 
+    if (lastSuccessSyncMillis !== undefined && lastSuccessSyncMillis === -2) {
+      lastSyncMsg = t("statusbar_failed");
+      lastSyncLabelMsg = t("statusbar_failed");
+    }
+
     if (lastSuccessSyncMillis !== undefined && lastSuccessSyncMillis > 0) {
       const deltaTime = Date.now() - lastSuccessSyncMillis;
 
diff --git a/src/sync.ts b/src/sync.ts
index 201fc0e..75ff1a8 100644
--- a/src/sync.ts
+++ b/src/sync.ts
@@ -1283,26 +1283,32 @@ export async function syncer(
   notifyFunc?: (s: SyncTriggerSourceType, step: number) => Promise<any>,
   errNotifyFunc?: (s: SyncTriggerSourceType, error: Error) => Promise<any>,
   ribboonFunc?: (s: SyncTriggerSourceType, step: number) => Promise<any>,
-  statusBarFunc?: (s: SyncTriggerSourceType, step: number) => any,
+  statusBarFunc?: (
+    s: SyncTriggerSourceType,
+    step: number,
+    everythingOk: boolean
+  ) => any,
   callbackSyncProcess?: any
 ) {
   console.info(`startting sync.`);
   markIsSyncingFunc(true);
 
+  let everythingOk = true;
+
   let step = 0; // dry mode only
   await notifyFunc?.(triggerSource, step);
 
   step = 1;
   await notifyFunc?.(triggerSource, step);
   await ribboonFunc?.(triggerSource, step);
-  await statusBarFunc?.(triggerSource, step);
+  await statusBarFunc?.(triggerSource, step, everythingOk);
   profiler.insert("start big sync func");
 
   try {
     step = 2;
     await notifyFunc?.(triggerSource, step);
     await ribboonFunc?.(triggerSource, step);
-    await statusBarFunc?.(triggerSource, step);
+    await statusBarFunc?.(triggerSource, step, everythingOk);
     if (fsEncrypt.innerFs !== fsRemote) {
       throw Error(`your enc should has inner of the remote`);
     }
@@ -1317,7 +1323,7 @@ export async function syncer(
     step = 3;
     await notifyFunc?.(triggerSource, step);
     await ribboonFunc?.(triggerSource, step);
-    await statusBarFunc?.(triggerSource, step);
+    await statusBarFunc?.(triggerSource, step, everythingOk);
     const remoteEntityList = await fsEncrypt.walk();
     // console.debug(`remoteEntityList:`);
     // console.debug(remoteEntityList);
@@ -1326,7 +1332,7 @@ export async function syncer(
     step = 4;
     await notifyFunc?.(triggerSource, step);
     await ribboonFunc?.(triggerSource, step);
-    await statusBarFunc?.(triggerSource, step);
+    await statusBarFunc?.(triggerSource, step, everythingOk);
     const localEntityList = await fsLocal.walk();
     // console.debug(`localEntityList:`);
     // console.debug(localEntityList);
@@ -1335,7 +1341,7 @@ export async function syncer(
     step = 5;
     await notifyFunc?.(triggerSource, step);
     await ribboonFunc?.(triggerSource, step);
-    await statusBarFunc?.(triggerSource, step);
+    await statusBarFunc?.(triggerSource, step, everythingOk);
     const prevSyncEntityList = await getAllPrevSyncRecordsByVaultAndProfile(
       db,
       vaultRandomID,
@@ -1348,7 +1354,7 @@ export async function syncer(
     step = 6;
     await notifyFunc?.(triggerSource, step);
     await ribboonFunc?.(triggerSource, step);
-    await statusBarFunc?.(triggerSource, step);
+    await statusBarFunc?.(triggerSource, step, everythingOk);
     let mixedEntityMappings = await ensembleMixedEnties(
       localEntityList,
       prevSyncEntityList,
@@ -1391,7 +1397,7 @@ export async function syncer(
     if (triggerSource !== "dry") {
       await notifyFunc?.(triggerSource, step);
       await ribboonFunc?.(triggerSource, step);
-      await statusBarFunc?.(triggerSource, step);
+      await statusBarFunc?.(triggerSource, step, everythingOk);
       await doActualSync(
         mixedEntityMappings,
         fsLocal,
@@ -1409,13 +1415,14 @@ export async function syncer(
     } else {
       await notifyFunc?.(triggerSource, step);
       await ribboonFunc?.(triggerSource, step);
-      await statusBarFunc?.(triggerSource, step);
+      await statusBarFunc?.(triggerSource, step, everythingOk);
       profiler.insert(
         `finish step${step} (skip actual sync because of dry run)`
       );
     }
   } catch (error: any) {
     profiler.insert("start error branch");
+    everythingOk = false;
     await errNotifyFunc?.(triggerSource, error as Error);
 
     profiler.insert("finish error branch");
@@ -1429,7 +1436,7 @@ export async function syncer(
   step = 8;
   await notifyFunc?.(triggerSource, step);
   await ribboonFunc?.(triggerSource, step);
-  await statusBarFunc?.(triggerSource, step);
+  await statusBarFunc?.(triggerSource, step, everythingOk);
 
   console.info(`endding sync.`);
   markIsSyncingFunc(false);