diff --git a/src/settings.ts b/src/settings.ts
index b4d347d..75088da 100644
--- a/src/settings.ts
+++ b/src/settings.ts
@@ -20,8 +20,8 @@ import {
   getAuthUrlAndVerifier as getAuthUrlAndVerifierOnedrive,
 } from "./remoteForOnedrive";
 
-import * as origLog from 'loglevel';
-const log = origLog.getLogger('rs-default');
+import * as origLog from "loglevel";
+const log = origLog.getLogger("rs-default");
 
 class PasswordModal extends Modal {
   plugin: RemotelySavePlugin;
@@ -897,6 +897,25 @@ export class RemotelySaveSettingTab extends PluginSettingTab {
 
     const debugDiv = containerEl.createEl("div");
     debugDiv.createEl("h2", { text: "Debug" });
+
+    const setConsoleLogLevelDiv = debugDiv.createDiv("div");
+    new Setting(setConsoleLogLevelDiv)
+      .setName("alter console log level")
+      .setDesc(
+        'By default the log level is "info". You can change to "debug" to get verbose infomation in console.'
+      )
+      .addDropdown(async (dropdown) => {
+        dropdown.addOption("info", "info");
+        dropdown.addOption("debug", "debug");
+        dropdown
+          .setValue(this.plugin.settings.currLogLevel)
+          .onChange(async (val: string) => {
+            this.plugin.settings.currLogLevel = val;
+            log.setLevel(val as any);
+            await this.plugin.saveSettings();
+            log.info(`the log level is changed to ${val}`);
+          });
+      });
     const syncPlanDiv = debugDiv.createEl("div");
     new Setting(syncPlanDiv)
       .setName("export sync plans")
diff --git a/src/sync.ts b/src/sync.ts
index df9edae..64e9e40 100644
--- a/src/sync.ts
+++ b/src/sync.ts
@@ -16,6 +16,9 @@ import {
 import { isHiddenPath, isVaildText, mkdirpInVault } from "./misc";
 import { RemoteClient } from "./remote";
 
+import * as origLog from "loglevel";
+const log = origLog.getLogger("rs-default");
+
 export type SyncStatusType =
   | "idle"
   | "preparing"
@@ -573,9 +576,10 @@ export const doActualSync = async (
   )) {
     const k2 = k as string;
     const v2 = v as FileOrFolderMixedState;
+    log.debug(`start syncing "${k2}" with plan ${JSON.stringify(v2)}`);
     await dispatchOperationToActual(
-      k as string,
-      v as FileOrFolderMixedState,
+      k2,
+      v2,
       client,
       db,
       vault,