diff --git a/package.json b/package.json
index feb4ca9..2b2bc5e 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,8 @@
   },
   "dependencies": {
     "@kintone/rest-api-client": "^5.7.5",
+    "jsrsasign": "^11.1.0",
+    "jsrsasign-util": "^1.0.5",
     "kintone-ui-component": "1.22.0",
     "rollup-plugin-css-only": "^4.5.2",
     "vue": "^3.5.13",
@@ -23,6 +25,7 @@
     "@kintone/dts-gen": "^8.1.1",
     "@kintone/plugin-packer": "^8.1.3",
     "@kintone/plugin-uploader": "^9.1.2",
+    "@types/jsrsasign": "^10.5.15",
     "@types/node-rsa": "^1.1.4",
     "@vitejs/plugin-vue": "^5.2.1",
     "@vue/tsconfig": "^0.7.0",
diff --git a/rsa_private.pem b/rsa_private.pem
new file mode 100644
index 0000000..a3bc7d7
--- /dev/null
+++ b/rsa_private.pem
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----
diff --git a/rsa_public.pem b/rsa_public.pem
new file mode 100644
index 0000000..03084ff
--- /dev/null
+++ b/rsa_public.pem
@@ -0,0 +1,9 @@
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzgKg0WmyZ+r4GmF51rmC
+j6JkFTVdEdBz5rjdTeKqOzjA5BR9ppZ/OsOvP/f2xzG+03FWhRsTW5aXtrSI6/7v
+1350tvjSunJE1joZj1K6ixugN2uL+PXcprxXX8owGDggU5Ss63UE43RQF+RFBNNO
+5/xvkcWIhAJtDV6VamvmsP2L5ufi6+xqyqcmpgAMoLuY2AxN62rXsnydYT9nxFxK
+keETw+aYMig/uGVW8oGmKgMOK2buDjmeELTwrZLEnp5/eGMfVFJXsd0zVqEwaxaf
+vM/cI4PqBev+QIvz7Fyw6W5CLrJ0KNcmL61C8GgBwby+sII9RTi/oOk5qT+jIVOx
+GwIDAQAB
+-----END PUBLIC KEY-----
diff --git a/src/components/LicenseStatus.vue b/src/components/LicenseStatus.vue
index bff1baa..43c453e 100644
--- a/src/components/LicenseStatus.vue
+++ b/src/components/LicenseStatus.vue
@@ -21,9 +21,9 @@
 <script setup lang="ts">
 import { ref, onMounted, computed, shallowRef } from 'vue';
 import { useI18n } from 'vue-i18n';
-import { LicenseService } from '@/services/LicenseService';
+import { LicenseService } from '@/services/license-service';
 import type { LicenseInfo } from '@/types/license';
-import { LicenseStorage } from '@/utils/LicenseStorage';
+import { LicenseStorage } from '@/utils/license-storage';
 
 const { t: $t } = useI18n();// 配置国际化
 
diff --git a/src/js/desktop.ts b/src/js/desktop.ts
index ed27cf8..c102caa 100644
--- a/src/js/desktop.ts
+++ b/src/js/desktop.ts
@@ -1,6 +1,6 @@
 import i18n from '@/i18n';
 import type { Setting } from '@/types';
-import { LicenseService } from '@/services/LicenseService';
+import { LicenseService } from '@/services/license-service';
 import client from '@/plugins/kintoneClient.ts'
 import { Button } from 'kintone-ui-component/lib/button';
 
diff --git a/src/js/mobile.ts b/src/js/mobile.ts
index ed1e7f7..8e25121 100644
--- a/src/js/mobile.ts
+++ b/src/js/mobile.ts
@@ -1,6 +1,6 @@
 import i18n from '@/i18n';
 import type { Setting } from '@/types';
-import { LicenseService } from '@/services/LicenseService';
+import { LicenseService } from '@/services/license-service';
 import client from '@/plugins/kintoneClient.ts'
 import { MobileButton } from 'kintone-ui-component/lib/mobile/button';
 
diff --git a/src/services/licenseService.ts b/src/services/license-service.ts
similarity index 64%
rename from src/services/licenseService.ts
rename to src/services/license-service.ts
index 8f53dea..e1639a1 100644
--- a/src/services/licenseService.ts
+++ b/src/services/license-service.ts
@@ -1,10 +1,13 @@
 import type { LicenseInfo, LicenseCheckResult } from '@/types/license';
 import i18n from '@/i18n';
-import { LicenseStorage } from '@/utils/LicenseStorage';
+import { LicenseStorage } from '@/utils/license-storage';
 import { PermissionService } from '@/utils/permissions';
 import { Notification } from 'kintone-ui-component/lib/notification';
 import { MobileNotification } from 'kintone-ui-component/lib/mobile/notification';
 import manifestJson from '@/manifest.json';
+import { KJUR } from 'jsrsasign';
+import rsaPublicKey from '../../rsa_public.pem?raw';
+import rsaPrivateKey from '../../rsa_private.pem?raw';
 
 const { t: $t } = i18n.global;
 
@@ -22,6 +25,16 @@ export class LicenseService {
     return window.location.hostname;
   }
 
+  /**
+   * 获取插件名
+   */
+  static getPluginName(): string {
+    const pluginName = manifestJson.name as Record<string, string>;
+    const userLang = kintone.getLoginUser().language;
+    const plugin = pluginName[userLang] || pluginName.ja;
+    return plugin;
+  }
+
   /**
    * 获取插件ID
    */
@@ -31,37 +44,50 @@ export class LicenseService {
 
   /**
    * 检查许可证是否有效
-   * 已付费/当日获取是 true
+   * 参数是解码后的JWT结构，验证签名和payload进行原有检查
    */
-  static checkLicenseAvailable(license: LicenseInfo) {
-      const domain = this.getDomain()
-      const pluginId = this.getPluginId()
-
-      // TODO jwt null
-
-      // 检查域名和插件ID是否与当前环境一致
-      if (license.domain !== domain || license.pluginId !== pluginId) {
+  static checkLicenseAvailable(jwtString: string, decodedJWT: KJUR.jws.JWS.JWSResult): boolean {
+    try {
+      // 验证完整的JWT
+      const result = KJUR.jws.JWS.verifyJWT(jwtString, rsaPublicKey.trim(), {alg: ['RS256']});
+      if (!result) {
+        console.warn('JWT signature verification failed');
         return false;
       }
 
-      // 检查是否付费
-      if (license.isPaid) {
-        return true;
-      }
+    } catch (error) {
+      console.error('JWT verification or parsing failed:', error);
+      return false;
+    }
+    // JWT验证通过，从payloadPP解析license进行原有检查
+    const license: LicenseInfo = JSON.parse(decodedJWT.payloadPP);
 
-      // 检查存储是否过期（是否同一天）
-      if (!this.isToday(license.fetchTime)) {
-        // 不是同一天，已过期
-        return false;
-      }
+    const domain = this.getDomain()
+    const pluginId = this.getPluginId()
 
-      // 检查试用是否到期
-      const expiredTime = new Date(license.expiredTime);
-      if (expiredTime < new Date()) {
-        return false;
-      }
+    // 检查域名和插件ID是否与当前环境一致
+    if (license.domain !== domain || license.pluginId !== pluginId) {
+      return false;
+    }
 
-      return true
+    // 检查是否付费
+    if (license.isPaid) {
+      return true;
+    }
+
+    // 检查存储是否过期（是否同一天）
+    if (!this.isToday(license.fetchTime)) {
+      // 不是同一天，已过期
+      return false;
+    }
+
+    // 检查试用是否到期
+    const expiredTime = new Date(license.expiredTime);
+    if (expiredTime < new Date()) {
+      return false;
+    }
+
+    return true;
   }
 
   static isToday(timestamp: number): boolean {
@@ -89,14 +115,29 @@ export class LicenseService {
    */
   static async checkLicenseRemote(): Promise<LicenseCheckResult> {
     try {
-      // 这里应该是实际的API调用，暂时模拟创建试用许可证
+      // 这里应该是实际的API调用，暂时模拟创建加密的试用许可证
       const response = await this.mockRemoteCheck(this.getDomain(), this.getPluginId());
 
-      const license = response.license!;
-      LicenseStorage.saveLicense(license);
+      if (!response.success || !response.jwt) {
+        return {
+          isLicenseValid: false,
+          isRemote: true,
+        };
+      }
+
+      const jwt = response.jwt;
+
+      // 保存 JWT 到本地存储，获取解码后的结构
+      const decodedJWT = LicenseStorage.saveLicense(jwt);
+
+      // 从解码后的JWT提取许可证信息
+      const license: LicenseInfo = JSON.parse(decodedJWT.payloadPP);
+
+      // 使用解码后的JWT进行验证
+      const isValid = this.checkLicenseAvailable(jwt, decodedJWT);
 
       return {
-        isLicenseValid: this.checkLicenseAvailable(license),
+        isLicenseValid: isValid,
         license,
         isRemote: true,
       };
@@ -104,7 +145,8 @@ export class LicenseService {
     } catch (error) {
       console.error($t('license.error.fetchFailed', { e: error }));
       return {
-        isLicenseValid: true,
+        isLicenseValid: false,
+        isRemote: true,
       };
     }
   }
@@ -146,7 +188,7 @@ export class LicenseService {
    */
   static async showNotification(license: LicenseInfo | undefined, isWarning: boolean) {
     let message;
-    const plugin = manifestJson.name[kintone.getLoginUser().language];
+    const plugin = this.getPluginName();
     if (isWarning) {
       // 尚未到期
       const remainingDays = this.getDaysRemaining(license!.expiredTime);
@@ -228,7 +270,15 @@ export class LicenseService {
    * 获取许可证信息（用于显示）
    */
   static getLocalLicenseInfo(): LicenseInfo | null {
-    return LicenseStorage.getLicense(this.getPluginId());
+    const decodedJWT = LicenseStorage.getLicense(this.getPluginId());
+    if (!decodedJWT) return null;
+
+    try {
+      return JSON.parse(decodedJWT.payloadPP) as LicenseInfo;
+    } catch (error) {
+      console.error('Failed to parse payloadPP from decoded JWT:', error);
+      return null;
+    }
   }
 
   /**
@@ -260,14 +310,36 @@ export class LicenseService {
     };
   }
 
+  /**
+   * 生成JWT token（内部方法）
+   */
+  private static generateJWT(licenseInfo: LicenseInfo): string {
+    const header = {
+      alg: 'RS256',
+      typ: 'JWT'
+    };
+
+    const payload = {
+      ...licenseInfo,
+      iat: Math.floor(Date.now() / 1000)
+    };
+
+    const sHeader = JSON.stringify(header);
+    const sPayload = JSON.stringify(payload);
+
+    const jwt = KJUR.jws.JWS.sign(null, sHeader, sPayload, rsaPrivateKey.trim());
+    return jwt;
+  }
+
   /**
    * 模拟远程验证（生产环境中会被真实API替换）
    */
-  private static async mockRemoteCheck(domain: string, pluginId: string): Promise<{ success: boolean; license?: LicenseInfo }> {
-    // 模拟API调用，这里总是返回试用许可证
+  private static async mockRemoteCheck(domain: string, pluginId: string): Promise<{ success: boolean; jwt?: string }> {
+    // 模拟API调用，这里总是返回加密的试用许可证
     // 生产环境这里会调用后端API: POST /api/license/check
 
     const license = this.mockCreateTrialLicense();
+    const jwt = this.generateJWT(license);
 
     // 模拟有时创建失败的情况（1%概率）
     if (Math.random() < 0.01) {
@@ -276,7 +348,7 @@ export class LicenseService {
 
     return {
       success: true,
-      license,
+      jwt,
     };
   }
 }
diff --git a/src/utils/licenseStorage.ts b/src/utils/license-storage.ts
similarity index 65%
rename from src/utils/licenseStorage.ts
rename to src/utils/license-storage.ts
index 23fd16b..b27fbe8 100644
--- a/src/utils/licenseStorage.ts
+++ b/src/utils/license-storage.ts
@@ -1,11 +1,24 @@
 // 本地存储加密工具类
-import { LicenseService } from '@/services/LicenseService';
+import { LicenseService } from '@/services/license-service';
 import type { LicenseInfo, LicenseSetting } from '@/types/license';
+import { KJUR } from 'jsrsasign';
 
 export class LicenseStorage {
   private static readonly STORAGE_KEY_PREFIX = 'alicorns_plugin_';
   private static readonly STORAGE_SETTING_KEY_PREFIX = this.STORAGE_KEY_PREFIX + 'setting_';
 
+  /**
+   * 解码JWT（不验证）
+   */
+  private static parseJWT(jwt: string) {
+    try {
+      return KJUR.jws.JWS.parse(jwt);
+    } catch (error) {
+      console.error('JWT parsing failed:', error);
+      return null;
+    }
+  }
+
   /**
    * 生成存储key
    */
@@ -14,13 +27,20 @@ export class LicenseStorage {
   }
 
   /**
-   * 保存许可证信息到本地存储
+   * 保存 JWT 到本地存储
    */
-  static saveLicense(licenseInfo: LicenseInfo): void {
+  static saveLicense(jwt: string) {
     try {
-      // 直接存储LicenseInfo对象（其中已包含fetchTime）
+      // 从 JWT 中提取 pluginId 以生成存储key
+      const decoded = this.parseJWT(jwt);
+      if (!decoded) {
+        throw new Error('Failed to parse JWT');
+      }
+      const licenseInfo = JSON.parse(decoded.payloadPP) as LicenseInfo;
       const key = this.generateStorageKey(licenseInfo.pluginId);
-      localStorage.setItem(key, JSON.stringify(licenseInfo));
+      localStorage.setItem(key, jwt);
+
+      return decoded;
     } catch (error) {
       console.error('Failed to save license:', error);
       throw error;
@@ -30,23 +50,29 @@ export class LicenseStorage {
   /**
    * 从本地存储获取许可证信息
    */
-  static getLicense(pluginId: string): LicenseInfo | null {
+  static getLicense(pluginId: string) {
     try {
       const key = this.generateStorageKey(pluginId);
-      const storedData = localStorage.getItem(key);
+      const storedJWT = localStorage.getItem(key);
 
-      if (!storedData) return null;
+      if (!storedJWT) return null;
 
-      const parsedData: LicenseInfo = JSON.parse(storedData);
+      // 解码JWT
+      const decodedJWT = this.parseJWT(storedJWT);
+      if (!decodedJWT) {
+        // JWT解析失败，清理存储
+        this.clearLicense(pluginId);
+        return null;
+      }
 
-      const isValid = LicenseService.checkLicenseAvailable(parsedData);
+      const isValid = LicenseService.checkLicenseAvailable(storedJWT, decodedJWT);
       if (!isValid) {
         // 获取许可证信息失败，清理存储
         this.clearLicense(pluginId);
         return null;
       }
 
-      return parsedData;
+      return decodedJWT;
     } catch (error) {
       console.error('Failed to get license:', error);
       // 如果获取失败，清空本地存储