diff --git a/docs/.vuepress/config.js b/docs/.vuepress/config.js
index 48fdfe5..b6d1d6b 100644
--- a/docs/.vuepress/config.js
+++ b/docs/.vuepress/config.js
@@ -59,6 +59,7 @@ module.exports = {
       ]
     },
   },
+  plugins: ['fulltext-search'],
   configureWebpack: {
     resolve: {
       alias: {
diff --git a/package-lock.json b/package-lock.json
index 44a3b7c..4002abc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,6 +25,7 @@
         "textlint-rule-period-in-list-item": "^1.0.1",
         "textlint-rule-write-good": "^2.0.0",
         "vuepress": "^1.9.8",
+        "vuepress-plugin-fulltext-search": "^2.2.1",
         "vuepress-theme-book": "^0.0.9"
       }
     },
@@ -8684,6 +8685,12 @@
       "integrity": "sha512-r5wGx7YeOwNWNlCA0wQ86zKyDLMQr+/RB8xy74M4hTphfmjlijTSSXGuH8rnvKZnfT9i+75zmd8jcKdMR4O6jA==",
       "dev": true
     },
+    "node_modules/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
+    },
     "node_modules/flush-write-stream": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/flush-write-stream/-/flush-write-stream-1.1.1.tgz",
@@ -9523,6 +9530,33 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/html-to-text": {
+      "version": "7.1.3",
+      "resolved": "https://registry.npmjs.org/html-to-text/-/html-to-text-7.1.3.tgz",
+      "integrity": "sha512-bnQRVDGgprdYkDRme4BH5xTxFo9ESorrfMHBWjtdgNVGkthXXQIGbmp3PRIjJVcaCP4mJMSuXtBi/lHqUCHUzw==",
+      "dev": true,
+      "dependencies": {
+        "deepmerge": "^4.2.2",
+        "he": "^1.2.0",
+        "htmlparser2": "^6.1.0",
+        "minimist": "^1.2.6"
+      },
+      "bin": {
+        "html-to-text": "bin/cli.js"
+      },
+      "engines": {
+        "node": ">=10.23.2"
+      }
+    },
+    "node_modules/html-to-text/node_modules/deepmerge": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.3.0.tgz",
+      "integrity": "sha512-z2wJZXrmeHdvYJp/Ux55wIjqo81G5Bp4c+oELTW+7ar6SogWHajt5a9gO3s3IDaGSAXjDk0vlQKN3rms8ab3og==",
+      "dev": true,
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/htmlparser2": {
       "version": "6.1.0",
       "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-6.1.0.tgz",
@@ -18150,6 +18184,20 @@
         "markdown-it-container": "^2.0.0"
       }
     },
+    "node_modules/vuepress-plugin-fulltext-search": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/vuepress-plugin-fulltext-search/-/vuepress-plugin-fulltext-search-2.2.1.tgz",
+      "integrity": "sha512-+BOLOdOTvwg7+4z71fmpuZUaHSw+exrw8S9m0kvBUgIVDoe5VS/G3y4hcd+K1hukbkxE/ec10Ikk8hc/3zf2VQ==",
+      "dev": true,
+      "dependencies": {
+        "flexsearch": "^0.6.32",
+        "html-to-text": "^7.0.0",
+        "lodash": "^4.17.19"
+      },
+      "peerDependencies": {
+        "vuepress": "^1.4.0"
+      }
+    },
     "node_modules/vuepress-plugin-smooth-scroll": {
       "version": "0.0.3",
       "resolved": "https://registry.npmjs.org/vuepress-plugin-smooth-scroll/-/vuepress-plugin-smooth-scroll-0.0.3.tgz",
@@ -26063,6 +26111,12 @@
       "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",
@@ -26699,6 +26753,26 @@
       "integrity": "sha512-vy7ClnArOZwCnqZgvv+ddgHgJiAFXe3Ge9ML5/mBctVJoUoYPCdxVucOywjDARn6CVoh3dRSFdPHy2sX80L0Wg==",
       "dev": true
     },
+    "html-to-text": {
+      "version": "7.1.3",
+      "resolved": "https://registry.npmjs.org/html-to-text/-/html-to-text-7.1.3.tgz",
+      "integrity": "sha512-bnQRVDGgprdYkDRme4BH5xTxFo9ESorrfMHBWjtdgNVGkthXXQIGbmp3PRIjJVcaCP4mJMSuXtBi/lHqUCHUzw==",
+      "dev": true,
+      "requires": {
+        "deepmerge": "^4.2.2",
+        "he": "^1.2.0",
+        "htmlparser2": "^6.1.0",
+        "minimist": "^1.2.6"
+      },
+      "dependencies": {
+        "deepmerge": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.3.0.tgz",
+          "integrity": "sha512-z2wJZXrmeHdvYJp/Ux55wIjqo81G5Bp4c+oELTW+7ar6SogWHajt5a9gO3s3IDaGSAXjDk0vlQKN3rms8ab3og==",
+          "dev": true
+        }
+      }
+    },
     "htmlparser2": {
       "version": "6.1.0",
       "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-6.1.0.tgz",
@@ -33638,6 +33712,17 @@
         "markdown-it-container": "^2.0.0"
       }
     },
+    "vuepress-plugin-fulltext-search": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/vuepress-plugin-fulltext-search/-/vuepress-plugin-fulltext-search-2.2.1.tgz",
+      "integrity": "sha512-+BOLOdOTvwg7+4z71fmpuZUaHSw+exrw8S9m0kvBUgIVDoe5VS/G3y4hcd+K1hukbkxE/ec10Ikk8hc/3zf2VQ==",
+      "dev": true,
+      "requires": {
+        "flexsearch": "^0.6.32",
+        "html-to-text": "^7.0.0",
+        "lodash": "^4.17.19"
+      }
+    },
     "vuepress-plugin-smooth-scroll": {
       "version": "0.0.3",
       "resolved": "https://registry.npmjs.org/vuepress-plugin-smooth-scroll/-/vuepress-plugin-smooth-scroll-0.0.3.tgz",
diff --git a/package.json b/package.json
index 4414e78..6d51967 100644
--- a/package.json
+++ b/package.json
@@ -36,6 +36,7 @@
     "textlint-rule-period-in-list-item": "^1.0.1",
     "textlint-rule-write-good": "^2.0.0",
     "vuepress": "^1.9.8",
+    "vuepress-plugin-fulltext-search": "^2.2.1",
     "vuepress-theme-book": "^0.0.9"
   }
 }