diff --git a/docs/.vuepress/config.js b/docs/.vuepress/config.js
index 1d66f80bcbc..2ca26383404 100644
--- a/docs/.vuepress/config.js
+++ b/docs/.vuepress/config.js
@@ -13,6 +13,7 @@ module.exports = {
   ],
   plugins: [
     'tabs',
+    ['flexsearch'],
     [
       '@vuepress/google-analytics',
       {
diff --git a/package-lock.json b/package-lock.json
index 367f3e47fbc..640e3615a15 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8351,6 +8351,12 @@
       "integrity": "sha512-r5wGx7YeOwNWNlCA0wQ86zKyDLMQr+/RB8xy74M4hTphfmjlijTSSXGuH8rnvKZnfT9i+75zmd8jcKdMR4O6jA==",
       "dev": true
     },
+    "flexsearch": {
+      "version": "0.6.32",
+      "resolved": "https://registry.npmjs.org/flexsearch/-/flexsearch-0.6.32.tgz",
+      "integrity": "sha512-EF1BWkhwoeLtbIlDbY/vDSLBen/E5l/f1Vg7iX5CDymQCamcx1vhlc3tIZxIDplPjgi0jhG37c67idFbjg+v+Q==",
+      "dev": true
+    },
     "flush-write-stream": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/flush-write-stream/-/flush-write-stream-1.1.1.tgz",
@@ -15586,6 +15592,15 @@
         "@vuepress/shared-utils": "^1.2.0"
       }
     },
+    "vuepress-plugin-flexsearch": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/vuepress-plugin-flexsearch/-/vuepress-plugin-flexsearch-0.1.0.tgz",
+      "integrity": "sha512-lXQthnPoLNh2RHg1ZT4Acr/2/Kml0cMV+0t2E/n6flg03LgJ3nZAQYLdiUNR9RRFtGQR79+Ifl6T4yBIoGC0Ww==",
+      "dev": true,
+      "requires": {
+        "flexsearch": "^0.6.32"
+      }
+    },
     "vuepress-plugin-redirect": {
       "version": "1.2.5",
       "resolved": "https://registry.npmjs.org/vuepress-plugin-redirect/-/vuepress-plugin-redirect-1.2.5.tgz",
diff --git a/package.json b/package.json
index e5958059106..163b56f56f6 100644
--- a/package.json
+++ b/package.json
@@ -95,6 +95,7 @@
     "typescript": "^4.1.5",
     "vue-tabs-component": "^1.5.0",
     "vuepress": "^1.8.2",
+    "vuepress-plugin-flexsearch": "^0.1.0",
     "vuepress-plugin-redirect": "^1.2.5",
     "vuepress-plugin-tabs": "^0.3.0",
     "vuepress-plugin-typedoc": "^0.6.0",