diff --git a/backend/src/main/java/io/dataease/controller/AboutController.java b/backend/src/main/java/io/dataease/controller/AboutController.java
new file mode 100644
index 0000000000..a4d9fa1e6d
--- /dev/null
+++ b/backend/src/main/java/io/dataease/controller/AboutController.java
@@ -0,0 +1,32 @@
+package io.dataease.controller;
+
+
+import io.dataease.commons.license.F2CLicenseResponse;
+import io.dataease.service.AboutService;
+import org.springframework.web.bind.annotation.*;
+
+import javax.annotation.Resource;
+import java.util.Map;
+
+@RequestMapping("/about")
+@RestController
+public class AboutController {
+
+    @Resource
+    private AboutService aboutService;
+
+    @PostMapping("/license/update")
+    public F2CLicenseResponse updateLicense(@RequestBody Map<String, String> map) {
+        return aboutService.updateLicense(map.get("license"));
+    }
+
+    @PostMapping("/license/validate")
+    public F2CLicenseResponse validateLicense(@RequestBody Map<String, String> map) {
+        return aboutService.validateLicense(map.get("license"));
+    }
+
+    @GetMapping("/build/version")
+    public Object getBuildVersion() {
+        return aboutService.getBuildVersion();
+    }
+}
diff --git a/backend/src/main/java/io/dataease/service/AboutService.java b/backend/src/main/java/io/dataease/service/AboutService.java
new file mode 100644
index 0000000000..70171f576b
--- /dev/null
+++ b/backend/src/main/java/io/dataease/service/AboutService.java
@@ -0,0 +1,54 @@
+package io.dataease.service;
+
+import io.dataease.commons.license.DefaultLicenseService;
+import io.dataease.commons.license.F2CLicenseResponse;
+import io.dataease.commons.utils.CommonBeanFactory;
+import io.dataease.commons.utils.LogUtil;
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.core.env.Environment;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.io.File;
+import java.util.Optional;
+
+@Service
+public class AboutService {
+    private static final String BUILD_VERSION = "/opt/fit2cloud/conf/version";
+    private static final String product = "dataease";
+
+    @Resource
+    private DefaultLicenseService defaultLicenseService;
+
+    public F2CLicenseResponse updateLicense(String licenseKey) {
+        F2CLicenseResponse f2CLicenseResponse = defaultLicenseService.updateLicense(product, licenseKey);
+        return f2CLicenseResponse;
+    }
+
+    public F2CLicenseResponse validateLicense(String licenseKey) {
+        if (StringUtils.isNotBlank(licenseKey)) {
+            return defaultLicenseService.validateLicense(product, licenseKey);
+        } else {
+            return defaultLicenseService.validateLicense();
+        }
+    }
+
+    public String getBuildVersion() {
+        try {
+            File file = new File(BUILD_VERSION);
+            if (file.exists()) {
+                String version = FileUtils.readFileToString(file, "UTF-8");
+                if (StringUtils.isNotBlank(version)) {
+                    return version;
+                }
+            }
+            String property = CommonBeanFactory.getBean(Environment.class).getProperty("cmp.version");
+            String result = Optional.ofNullable(property).orElse("V1.0");
+            return result;
+        } catch (Exception e) {
+            LogUtil.error("failed to get build version.", e);
+        }
+        return "unknown";
+    }
+}
diff --git a/frontend/src/api/system/about.js b/frontend/src/api/system/about.js
new file mode 100644
index 0000000000..b2a5d1739b
--- /dev/null
+++ b/frontend/src/api/system/about.js
@@ -0,0 +1,24 @@
+import request from '@/utils/request'
+
+export function validate(data) {
+  return request({
+    url: '/about/license/validate',
+    method: 'post',
+    data
+  })
+}
+
+export function buildVersion() {
+  return request({
+    url: '/about/build/version',
+    method: 'get'
+  })
+}
+
+export function updateInfo(data) {
+  return request({
+    url: '/about/license/update',
+    method: 'post',
+    data
+  })
+}
diff --git a/frontend/src/assets/license_header.png b/frontend/src/assets/license_header.png
new file mode 100644
index 0000000000..3dd7dc62bc
Binary files /dev/null and b/frontend/src/assets/license_header.png differ
diff --git a/frontend/src/layout/components/Licbar.vue b/frontend/src/layout/components/Licbar.vue
index 1d8446cf53..66575df2fe 100644
--- a/frontend/src/layout/components/Licbar.vue
+++ b/frontend/src/layout/components/Licbar.vue
@@ -50,7 +50,11 @@ export default {
         background-color: #c92100;
         color: #fff;
         text-align: center;
-        padding: 6px 11px;
+        /* padding: 6px 11px; */
+        position: fixed;
+        z-index: 1002;
+        top: 0;
+        width: 100%;
     }
 
 </style>
diff --git a/frontend/src/layout/components/Topbar.vue b/frontend/src/layout/components/Topbar.vue
index ebb84789ec..86a7cb41cf 100644
--- a/frontend/src/layout/components/Topbar.vue
+++ b/frontend/src/layout/components/Topbar.vue
@@ -51,13 +51,16 @@
             <el-dropdown-item>重置密码</el-dropdown-item>
           </router-link>
 
-          <a href="https://panjiachen.github.io/vue-element-admin-site/#/" target="_blank">
+          <a href="/swagger-ui/index.html" target="_blank">
             <el-dropdown-item>Docs</el-dropdown-item>
           </a>
 
-          <a href="https://fit2cloud.com/" target="_blank">
+          <!-- <a href="https://fit2cloud.com/" target="_blank">
             <el-dropdown-item>关于</el-dropdown-item>
-          </a>
+          </a> -->
+          <router-link to="/system/about">
+            <el-dropdown-item>关于</el-dropdown-item>
+          </router-link>
           <el-dropdown-item divided @click.native="logout">
             <span style="display:block;">退出</span>
           </el-dropdown-item>
diff --git a/frontend/src/layout/index.vue b/frontend/src/layout/index.vue
index 5a8fbb1abd..594e075b83 100644
--- a/frontend/src/layout/index.vue
+++ b/frontend/src/layout/index.vue
@@ -1,6 +1,6 @@
 <template>
   <div :class="classObj" class="app-wrapper">
-    <!-- <licbar /> -->
+    <licbar />
     <topbar />
     <div v-if="device==='mobile'&&sidebar.opened" class="drawer-bg" @click="handleClickOutside" />
     <sidebar v-if="!sidebar.hide" class="sidebar-container" />
@@ -18,8 +18,8 @@
 
 <script>
 import RightPanel from '@/components/RightPanel'
-// import { Sidebar, Settings, AppMain, Topbar, Licbar } from './components'
-import { Sidebar, Settings, AppMain, Topbar } from './components'
+import { Sidebar, Settings, AppMain, Topbar, Licbar } from './components'
+// import { Sidebar, Settings, AppMain, Topbar } from './components'
 import ResizeMixin from './mixin/ResizeHandler'
 
 export default {
@@ -29,8 +29,8 @@ export default {
     Sidebar,
     Settings,
     AppMain,
-    Topbar
-    // Licbar
+    Topbar,
+    Licbar
   },
   mixins: [ResizeMixin],
   computed: {
diff --git a/frontend/src/views/system/about/index.vue b/frontend/src/views/system/about/index.vue
new file mode 100644
index 0000000000..672dab966f
--- /dev/null
+++ b/frontend/src/views/system/about/index.vue
@@ -0,0 +1,211 @@
+<template>
+  <layout-content>
+
+    <div>
+      <el-card class="box-card about-card">
+        <div slot="header" class="clearfix license-header">
+          <img src="@/assets/DataEase-white.png" alt="" style="height: 80px;width: 400px;padding-top: 15px;">
+        </div>
+        <div class="license-content">
+          <div v-if="license.status === 'Fail'">License 无效</div>
+          <div v-if="license.status !== 'Fail'">
+            <table>
+              <tr>
+                <th>授权给</th>
+                <td>{{ license.corporation }}</td>
+              </tr>
+              <tr>
+                <th>过期时间</th>
+                <td>
+                  <label v-if="license.status === 'expired'" style="color: red">{{ license.expired }} (已过期)</label>
+                  <label v-if="license.status === 'valid'">{{ license.expired }}</label>
+                </td>
+              </tr>
+              <tr>
+                <th>授权数量</th>
+                <td>{{ license.count }}</td>
+              </tr>
+              <tr>
+                <th>版本</th>
+                <td>
+                  <span v-if="license.edition">
+                    <span v-if="license.edition === 'Standard'">标准版</span>
+                    <span v-if="license.edition === 'Enterprise'">企业版</span>
+                  </span>
+                </td>
+              </tr>
+              <tr>
+                <th>版本号</th>
+                <td>
+                  <span>{{ build }}</span>
+                </td>
+              </tr>
+            </table>
+          </div>
+
+          <div class="md-padding" />
+          <div layout="row" layout-align="space-between center" class="lic_rooter">
+            <el-upload
+              action=""
+              :multiple="false"
+              :show-file-list="false"
+              :file-list="fileList"
+              accept=".key"
+              name="file"
+              :before-upload="beforeUpload"
+            >
+              <a class="md-primary pointer">更新 License</a>
+
+            </el-upload>
+
+            <a class="md-primary pointer" @click="support">获取技术支持</a>
+
+          </div>
+        </div>
+      </el-card>
+    </div>
+  </layout-content>
+</template>
+
+<script>
+import LayoutContent from '@/components/business/LayoutContent'
+import { validate, buildVersion, updateInfo } from '@/api/system/about'
+import { getToken } from '@/utils/auth'
+export default {
+
+  components: { LayoutContent },
+  data() {
+    return {
+      license: {},
+      version: null,
+      build: null,
+      licenseKey: '',
+      fileList: [],
+      headers: { Authorization: getToken() }
+    }
+  },
+
+  created() {
+    this.initVersion()
+    this.getLicenseInfo()
+  },
+  methods: {
+
+    initVersion() {
+      buildVersion().then(res => {
+        this.build = res.data
+      })
+    },
+    getLicenseInfo() {
+    //   validate({}).then(res => {
+    //     this.license = this.getLicense(res.data)
+    //     console.log(this.license)
+    //   })
+      this.validateHandler({}, res => {
+        this.license = this.getLicense(res.data)
+      })
+    },
+    validateHandler(param, success) {
+      validate(param).then(success)
+    },
+    getLicense(result) {
+      return {
+        status: result.status,
+        corporation: result.license ? result.license.corporation : '',
+        expired: result.license ? result.license.expired : '',
+        count: result.license ? result.license.count : '',
+        version: result.license ? result.license.version : '',
+        edition: result.license ? result.license.edition : ''
+      }
+    },
+    importLic(file) {
+      const reader = new FileReader()
+      reader.onload = function(e) {
+        this.licenseKey = e.target.result
+        this.validateHandler({ license: this.licenseKey }, response => {
+          this.updateLicense = this.getLicense(response.data)
+          this.update()
+        })
+      }.bind(this)
+      reader.readAsText(file)
+    },
+    update() {
+      const param = { license: this.licenseKey }
+      updateInfo(param).then(response => {
+        if (response.data.status === 'valid') {
+          this.$success(this.$t('i18n_mc_update_success'))
+          this.license = this.getLicense(response.data)
+        } else {
+          this.$warning(response.data.message)
+        }
+      })
+    },
+    support() {
+      const url = 'https://support.fit2cloud.com/'
+      window.open(url, '_blank')
+    },
+    beforeUpload(file) {
+      // console.log(file)
+      this.importLic(file)
+      return false
+    }
+
+  }
+}
+</script>
+
+<style lang="scss" scoped>
+    .about-card {
+        background: inherit;
+        margin-top: 5%;
+        flex-direction: row;
+        margin-left: 20%;
+        margin-right: 20%;
+        width: 640px;
+        height: 400px;
+        position: relative;
+        >>>div.el-card__header {
+            padding: 0;
+        }
+    }
+    .license-header {
+        height: 100px;
+        background-image: url('../../../assets/license_header.png');
+        text-align: center;
+        padding: 20px 0;
+        background-size: 100% 100%;
+    }
+
+    .license-content {
+        font-size: 16px;
+        padding: 50px;
+        >>>table {
+            width: 100%;
+        }
+        >>>th {
+            text-align: left;
+            width: 45%;
+        }
+        >>>td {
+            display: table-cell;
+            vertical-align: inherit;
+        }
+    }
+    .md-padding {
+        padding: 10px;
+    }
+    .lic_rooter {
+        flex-direction: row;
+        box-sizing: border-box;
+        display: flex;
+        align-items: center;
+        align-content: center;
+        max-width: 100%;
+        justify-content: space-between;
+
+        >>>a{
+            color: rgb(10,123,224);
+            cursor: pointer;
+        }
+    }
+</style>