diff --git a/api/user_setting.go b/api/user_setting.go
index 36727885..8c7cacd7 100644
--- a/api/user_setting.go
+++ b/api/user_setting.go
@@ -12,6 +12,8 @@ const (
 	UserSettingLocaleKey UserSettingKey = "locale"
 	// UserSettingMemoVisibilityKey is the key type for user preference memo default visibility.
 	UserSettingMemoVisibilityKey UserSettingKey = "memoVisibility"
+	// UserSettingEditorFontStyleKey is the key type for editor font style.
+	UserSettingEditorFontStyleKey UserSettingKey = "editorFontStyle"
 )
 
 // String returns the string format of UserSettingKey type.
@@ -21,13 +23,16 @@ func (key UserSettingKey) String() string {
 		return "locale"
 	case UserSettingMemoVisibilityKey:
 		return "memoVisibility"
+	case UserSettingEditorFontStyleKey:
+		return "editorFontFamily"
 	}
 	return ""
 }
 
 var (
-	UserSettingLocaleValue         = []string{"en", "zh"}
-	UserSettingMemoVisibilityValue = []Visibility{Privite, Protected, Public}
+	UserSettingLocaleValue          = []string{"en", "zh"}
+	UserSettingMemoVisibilityValue  = []Visibility{Privite, Protected, Public}
+	UserSettingEditorFontStyleValue = []string{"normal", "mono"}
 )
 
 type UserSetting struct {
@@ -45,7 +50,7 @@ type UserSettingUpsert struct {
 
 func (upsert UserSettingUpsert) Validate() error {
 	if upsert.Key == UserSettingLocaleKey {
-		var localeValue string
+		localeValue := "en"
 		err := json.Unmarshal([]byte(upsert.Value), &localeValue)
 		if err != nil {
 			return fmt.Errorf("failed to unmarshal user setting locale value")
@@ -62,7 +67,7 @@ func (upsert UserSettingUpsert) Validate() error {
 			return fmt.Errorf("invalid user setting locale value")
 		}
 	} else if upsert.Key == UserSettingMemoVisibilityKey {
-		var memoVisibilityValue Visibility
+		memoVisibilityValue := Privite
 		err := json.Unmarshal([]byte(upsert.Value), &memoVisibilityValue)
 		if err != nil {
 			return fmt.Errorf("failed to unmarshal user setting memo visibility value")
@@ -78,6 +83,23 @@ func (upsert UserSettingUpsert) Validate() error {
 		if invalid {
 			return fmt.Errorf("invalid user setting memo visibility value")
 		}
+	} else if upsert.Key == UserSettingEditorFontStyleKey {
+		editorFontStyleValue := "normal"
+		err := json.Unmarshal([]byte(upsert.Value), &editorFontStyleValue)
+		if err != nil {
+			return fmt.Errorf("failed to unmarshal user setting editor font style")
+		}
+
+		invalid := true
+		for _, value := range UserSettingEditorFontStyleValue {
+			if editorFontStyleValue == value {
+				invalid = false
+				break
+			}
+		}
+		if invalid {
+			return fmt.Errorf("invalid user setting editor font style value")
+		}
 	} else {
 		return fmt.Errorf("invalid user setting key")
 	}
diff --git a/web/src/components/MemoEditor.tsx b/web/src/components/MemoEditor.tsx
index 313aa44a..da06af0f 100644
--- a/web/src/components/MemoEditor.tsx
+++ b/web/src/components/MemoEditor.tsx
@@ -18,6 +18,7 @@ interface State {
 
 const MemoEditor: React.FC<Props> = () => {
   const { t, locale } = useI18n();
+  const user = useAppSelector((state) => state.user.user);
   const editorState = useAppSelector((state) => state.editor);
   const tags = useAppSelector((state) => state.memo.tags);
   const [state, setState] = useState<State>({
@@ -27,6 +28,7 @@ const MemoEditor: React.FC<Props> = () => {
   const editorRef = useRef<EditorRefActions>(null);
   const prevGlobalStateRef = useRef(editorState);
   const tagSeletorRef = useRef<HTMLDivElement>(null);
+  const editorFontStyle = user?.setting.editorFontStyle || "normal";
 
   useEffect(() => {
     if (editorState.markMemoId && editorState.markMemoId !== UNKNOWN_ID) {
@@ -214,7 +216,7 @@ const MemoEditor: React.FC<Props> = () => {
 
   const editorConfig = useMemo(
     () => ({
-      className: "memo-editor",
+      className: `memo-editor ${editorFontStyle}`,
       initialContent: getEditorContentCache(),
       placeholder: t("editor.placeholder"),
       fullscreen: state.fullscreen,
@@ -222,7 +224,7 @@ const MemoEditor: React.FC<Props> = () => {
       onConfirmBtnClick: handleSaveBtnClick,
       onContentChange: handleContentChange,
     }),
-    [isEditing, state.fullscreen, locale]
+    [isEditing, state.fullscreen, locale, editorFontStyle]
   );
 
   return (
diff --git a/web/src/components/Settings/PreferencesSection.tsx b/web/src/components/Settings/PreferencesSection.tsx
index 072365b7..d4ed00ab 100644
--- a/web/src/components/Settings/PreferencesSection.tsx
+++ b/web/src/components/Settings/PreferencesSection.tsx
@@ -19,6 +19,17 @@ const localeSelectorItems = [
   },
 ];
 
+const editorFontStyleSelectorItems = [
+  {
+    text: "Normal",
+    value: "normal",
+  },
+  {
+    text: "Mono",
+    value: "mono",
+  },
+];
+
 const PreferencesSection: React.FC<Props> = () => {
   const { t } = useI18n();
   const { setting } = useAppSelector((state) => state.user.user as User);
@@ -32,14 +43,21 @@ const PreferencesSection: React.FC<Props> = () => {
     await userService.upsertUserSetting("memoVisibility", value);
   };
 
+  const handleEditorFontStyleChanged = async (value: string) => {
+    await userService.upsertUserSetting("editorFontStyle", value);
+  };
+
   return (
     <div className="section-container preferences-section-container">
-      <label className="form-label">
-        <span className="normal-text">{t("common.language")}:</span>
+      <p className="title-text">{t("common.language")}</p>
+      <label className="form-label selector">
+        <span className="normal-text">
+          {t("common.language")}: <BetaBadge className="ml-2" />
+        </span>
         <Selector className="ml-2 w-28" value={setting.locale} dataSource={localeSelectorItems} handleValueChanged={handleLocaleChanged} />
-        <BetaBadge className="ml-2" />
       </label>
-      <label className="form-label">
+      <p className="title-text">{t("setting.preference")}</p>
+      <label className="form-label selector">
         <span className="normal-text">{t("setting.preference-section.default-memo-visibility")}:</span>
         <Selector
           className="ml-2 w-32"
@@ -48,6 +66,15 @@ const PreferencesSection: React.FC<Props> = () => {
           handleValueChanged={handleDefaultMemoVisibilityChanged}
         />
       </label>
+      <label className="form-label selector">
+        <span className="normal-text">{t("setting.preference-section.editor-font-style")}:</span>
+        <Selector
+          className="ml-2 w-32"
+          value={setting.editorFontStyle}
+          dataSource={editorFontStyleSelectorItems}
+          handleValueChanged={handleEditorFontStyleChanged}
+        />
+      </label>
     </div>
   );
 };
diff --git a/web/src/less/editor.less b/web/src/less/editor.less
index d1ec1f4d..cd280a42 100644
--- a/web/src/less/editor.less
+++ b/web/src/less/editor.less
@@ -1,8 +1,13 @@
 @import "./mixin.less";
 
 .common-editor-wrapper {
-  .flex(column, flex-start, flex-start);
-  @apply relative w-full h-auto bg-white;
+  @apply flex flex-col justify-start items-start relative w-full h-auto bg-white;
+
+  &.mono {
+    > .common-editor-inputer {
+      @apply font-mono;
+    }
+  }
 
   > .common-editor-inputer {
     @apply w-full h-full mt-1 mb-1 text-base resize-none overflow-x-hidden overflow-y-auto bg-transparent whitespace-pre-wrap;
diff --git a/web/src/less/setting-dialog.less b/web/src/less/setting-dialog.less
index 333b005b..3dc0937b 100644
--- a/web/src/less/setting-dialog.less
+++ b/web/src/less/setting-dialog.less
@@ -50,7 +50,7 @@
           }
 
           > .form-label {
-            @apply flex flex-row justify-start items-center w-full mb-2;
+            @apply flex flex-row items-center w-full mb-2;
 
             > .normal-text {
               @apply shrink-0 select-text;
diff --git a/web/src/less/settings/preferences-section.less b/web/src/less/settings/preferences-section.less
index b10e4f9f..c7a167c3 100644
--- a/web/src/less/settings/preferences-section.less
+++ b/web/src/less/settings/preferences-section.less
@@ -1,8 +1,12 @@
 @import "../mixin.less";
 
 .preferences-section-container {
-  > .form-label {
-    @apply mb-2;
+  > .title-text {
+    @apply mt-4 first:mt-1;
+  }
+
+  > .form-label.selector {
+    @apply mb-2 flex flex-row justify-between items-center;
 
     > .normal-text {
       @apply mr-2 text-sm;
diff --git a/web/src/locales/en.json b/web/src/locales/en.json
index 46835dfa..8563f2b4 100644
--- a/web/src/locales/en.json
+++ b/web/src/locales/en.json
@@ -56,7 +56,8 @@
       "title": "Account Information"
     },
     "preference-section": {
-      "default-memo-visibility": "Default memo visibility"
+      "default-memo-visibility": "Default memo visibility",
+      "editor-font-style": "Editor font style"
     },
     "member-section": {
       "create-a-member": "Create a member"
diff --git a/web/src/locales/zh.json b/web/src/locales/zh.json
index e1633f41..01eb6579 100644
--- a/web/src/locales/zh.json
+++ b/web/src/locales/zh.json
@@ -56,7 +56,8 @@
       "title": "账号信息"
     },
     "preference-section": {
-      "default-memo-visibility": "默认 Memo 可见性"
+      "default-memo-visibility": "默认 Memo 可见性",
+      "editor-font-style": "编辑器字体样式"
     },
     "member-section": {
       "create-a-member": "创建成员"
diff --git a/web/src/services/userService.ts b/web/src/services/userService.ts
index 0a1c8917..8c618002 100644
--- a/web/src/services/userService.ts
+++ b/web/src/services/userService.ts
@@ -7,6 +7,7 @@ import { setUser, patchUser, setHost, setOwner } from "../store/modules/user";
 const defauleSetting: Setting = {
   locale: "en",
   memoVisibility: "PRIVATE",
+  editorFontStyle: "normal",
 };
 
 export const convertResponseModelUser = (user: User): User => {
@@ -16,7 +17,7 @@ export const convertResponseModelUser = (user: User): User => {
 
   if (user.userSettingList) {
     for (const userSetting of user.userSettingList) {
-      setting[userSetting.key] = JSON.parse(userSetting.value);
+      (setting as any)[userSetting.key] = JSON.parse(userSetting.value);
     }
   }
 
@@ -92,7 +93,7 @@ const userService = {
     }
   },
 
-  upsertUserSetting: async (key: string, value: any) => {
+  upsertUserSetting: async (key: keyof Setting, value: any) => {
     await api.upsertUserSetting({
       key: key as any,
       value: JSON.stringify(value),
diff --git a/web/src/types/modules/setting.d.ts b/web/src/types/modules/setting.d.ts
index 38271afc..9508a3bc 100644
--- a/web/src/types/modules/setting.d.ts
+++ b/web/src/types/modules/setting.d.ts
@@ -1,6 +1,7 @@
 interface Setting {
   locale: Locale;
   memoVisibility: Visibility;
+  editorFontStyle: "normal" | "mono";
 }
 
 interface UserLocaleSetting {
@@ -13,7 +14,12 @@ interface UserMemoVisibilitySetting {
   value: Visibility;
 }
 
-type UserSetting = UserLocaleSetting;
+interface UserEditorFontStyleSetting {
+  key: "editorFontStyle";
+  value: "normal" | "mono";
+}
+
+type UserSetting = UserLocaleSetting | UserMemoVisibilitySetting | UserEditorFontStyleSetting;
 
 interface UserSettingUpsert {
   key: keyof Setting;