diff --git a/src/config/i18n.js b/src/config/i18n.js
index 6a5a397..2da2ee1 100644
--- a/src/config/i18n.js
+++ b/src/config/i18n.js
@@ -45,12 +45,20 @@ export const I18N = {
     en: `Interface Language`,
   },
   fetch_limit: {
-    zh: `最大请求数量`,
-    en: `Maximum Number Of Request`,
+    zh: `最大请求数量 (1-100)`,
+    en: `Maximum Number Of Request (1-100)`,
   },
   fetch_interval: {
-    zh: `请求间隔时间(ms)`,
-    en: `Request Interval(ms)`,
+    zh: `请求间隔时间 (0-5000ms)`,
+    en: `Request Interval (0-5000ms)`,
+  },
+  min_translate_length: {
+    zh: `最小翻译长度 (1-100)`,
+    en: `Min Translate Length (1-100)`,
+  },
+  max_translate_length: {
+    zh: `最大翻译长度 (100-10000)`,
+    en: `Max Translate Length (100-10000)`,
   },
   translate_service: {
     zh: `翻译服务`,
diff --git a/src/config/index.js b/src/config/index.js
index 4375f90..72c4401 100644
--- a/src/config/index.js
+++ b/src/config/index.js
@@ -165,11 +165,16 @@ export const DEFAULT_SUBRULES_LIST = [
   },
 ];
 
+export const TRANS_MIN_LENGTH = 5; // 最短翻译长度
+export const TRANS_MAX_LENGTH = 5000; // 最长翻译长度
+
 export const DEFAULT_SETTING = {
   darkMode: false, // 深色模式
   uiLang: "en", // 界面语言
   fetchLimit: DEFAULT_FETCH_LIMIT, // 最大任务数量
   fetchInterval: DEFAULT_FETCH_INTERVAL, // 任务间隔时间
+  minLength: TRANS_MIN_LENGTH,
+  maxLength: TRANS_MAX_LENGTH,
   clearCache: false, // 是否在浏览器下次启动时清除缓存
   injectRules: true, // 是否注入订阅规则
   subrulesList: DEFAULT_SUBRULES_LIST, // 订阅列表
@@ -182,9 +187,6 @@ export const DEFAULT_SETTING = {
 
 export const DEFAULT_RULES = [GLOBLA_RULE];
 
-export const TRANS_MIN_LENGTH = 5; // 最短翻译长度
-export const TRANS_MAX_LENGTH = 5000; // 最长翻译长度
-
 export const DEFAULT_SYNC = {
   syncUrl: "", // 数据同步接口
   syncKey: "", // 数据同步密钥
diff --git a/src/libs/translator.js b/src/libs/translator.js
index ee71185..357f09d 100644
--- a/src/libs/translator.js
+++ b/src/libs/translator.js
@@ -17,6 +17,8 @@ import { fetchUpdate, fetchClear } from "./fetch";
  */
 export class Translator {
   _rule = {};
+  _minLength = 0;
+  _maxLength = 0;
 
   _interseObserver = new IntersectionObserver(
     (intersections) => {
@@ -46,8 +48,10 @@ export class Translator {
     });
   });
 
-  constructor(rule, { fetchInterval, fetchLimit }) {
+  constructor(rule, { fetchInterval, fetchLimit, minLength, maxLength }) {
     fetchUpdate(fetchInterval, fetchLimit);
+    this._minLength = minLength ?? TRANS_MIN_LENGTH;
+    this._maxLength = maxLength ?? TRANS_MAX_LENGTH;
     this.rule = rule;
     if (rule.transOpen === "true") {
       this._register();
@@ -138,7 +142,7 @@ export class Translator {
 
     // 太长或太短
     const q = el.innerText.trim();
-    if (!q || q.length < TRANS_MIN_LENGTH || q.length > TRANS_MAX_LENGTH) {
+    if (!q || q.length < this._minLength || q.length > this._maxLength) {
       return;
     }
 
diff --git a/src/views/Options/Setting.js b/src/views/Options/Setting.js
index ff4180e..2851092 100644
--- a/src/views/Options/Setting.js
+++ b/src/views/Options/Setting.js
@@ -28,6 +28,12 @@ export default function Settings() {
           case "fetchInterval":
             value = limitNumber(value, 0, 5000);
             break;
+          case "minLength":
+            value = limitNumber(value, 1, 100);
+            break;
+          case "maxLength":
+            value = limitNumber(value, 100, 10000);
+            break;
           default:
         }
         updateSetting({
@@ -46,6 +52,8 @@ export default function Settings() {
     googleUrl,
     fetchLimit,
     fetchInterval,
+    minLength,
+    maxLength,
     openaiUrl,
     openaiKey,
     openaiModel,
@@ -90,6 +98,24 @@ export default function Settings() {
           onChange={handleChange}
         />
 
+        <TextField
+          size="small"
+          label={i18n("min_translate_length")}
+          type="number"
+          name="minLength"
+          defaultValue={minLength}
+          onChange={handleChange}
+        />
+
+        <TextField
+          size="small"
+          label={i18n("max_translate_length")}
+          type="number"
+          name="maxLength"
+          defaultValue={maxLength}
+          onChange={handleChange}
+        />
+
         <FormControl size="small">
           <InputLabel>{i18n("clear_cache")}</InputLabel>
           <Select