diff --git a/src/editor/core/i18n/I18n.ts b/src/editor/core/i18n/I18n.ts
index 4b2e0f3..aaafc08 100644
--- a/src/editor/core/i18n/I18n.ts
+++ b/src/editor/core/i18n/I18n.ts
@@ -1,6 +1,8 @@
 import { ILang } from '../../interface/i18n/I18n'
 import zhCN from './lang/zh-CN.json'
 import en from './lang/en.json'
+import { mergeObject } from '../../utils'
+import { DeepPartial } from '../../interface/Common'
 
 export class I18n {
 
@@ -11,8 +13,12 @@ export class I18n {
 
   private currentLocale = 'zhCN'
 
-  public registerLangMap(locale: string, lang: ILang) {
-    this.langMap.set(locale, lang)
+  public registerLangMap(locale: string, lang: DeepPartial<ILang>) {
+    const sourceLang = this.langMap.get(locale)
+    this.langMap.set(
+      locale,
+      <ILang>mergeObject(sourceLang || zhCN, lang)
+    )
   }
 
   public setLocale(locale: string) {
diff --git a/src/editor/core/register/Register.ts b/src/editor/core/register/Register.ts
index 6a24f55..d7ac853 100644
--- a/src/editor/core/register/Register.ts
+++ b/src/editor/core/register/Register.ts
@@ -4,6 +4,7 @@ import { ContextMenu } from '../contextmenu/ContextMenu'
 import { Shortcut } from '../shortcut/Shortcut'
 import { I18n } from '../i18n/I18n'
 import { ILang } from '../../interface/i18n/I18n'
+import { DeepPartial } from '../../interface/Common'
 
 interface IRegisterPayload {
   contextMenu: ContextMenu;
@@ -15,7 +16,7 @@ export class Register {
 
   public contextMenuList: (payload: IRegisterContextMenu[]) => void
   public shortcutList: (payload: IRegisterShortcut[]) => void
-  public langMap: (locale: string, lang: ILang) => void
+  public langMap: (locale: string, lang: DeepPartial<ILang>) => void
 
   constructor(payload: IRegisterPayload) {
     const { contextMenu, shortcut, i18n } = payload
diff --git a/src/editor/interface/Common.ts b/src/editor/interface/Common.ts
index 45c1e75..13fa102 100644
--- a/src/editor/interface/Common.ts
+++ b/src/editor/interface/Common.ts
@@ -22,4 +22,8 @@ export type DeepRequired<T> = T extends Error
   ? Promise<DeepRequired<U>>
   : T extends {}
   ? { [K in keyof T]-?: DeepRequired<T[K]> }
-  : Required<T>
\ No newline at end of file
+  : Required<T>
+
+export type DeepPartial<T> = {
+  [P in keyof T]?: DeepPartial<T[P]>;
+}
\ No newline at end of file
diff --git a/src/editor/utils/index.ts b/src/editor/utils/index.ts
index a93677c..a6383ab 100644
--- a/src/editor/utils/index.ts
+++ b/src/editor/utils/index.ts
@@ -87,4 +87,28 @@ function nClickEvent(n: number, dom: HTMLElement, fn: (evt: MouseEvent) => any)
   }
 
   dom.addEventListener('click', handler)
+}
+
+export function isObject(type: unknown): type is Record<string, unknown> {
+  return Object.prototype.toString.call(type) === '[object Object]'
+}
+
+export function isArray(type: unknown): type is Array<unknown> {
+  return Array.isArray(type)
+}
+
+export function mergeObject<T>(source: T, target: T): T {
+  if (isObject(source) && isObject(target)) {
+    const objectTarget = <Record<string, unknown>>target
+    for (const [key, val] of Object.entries(source)) {
+      if (!objectTarget[key]) {
+        objectTarget[key] = val
+      } else {
+        objectTarget[key] = mergeObject(val, objectTarget[key])
+      }
+    }
+  } else if (isArray(source) && isArray(target)) {
+    target.push(...source)
+  }
+  return target
 }
\ No newline at end of file