diff --git a/packages/vant-cli/package.json b/packages/vant-cli/package.json
index 4d61bdfcb..9fc7c1c27 100644
--- a/packages/vant-cli/package.json
+++ b/packages/vant-cli/package.json
@@ -27,6 +27,7 @@
     "vue-template-compiler": "^2.6.10"
   },
   "devDependencies": {
+    "@types/csso": "^3.5.1",
     "@types/eslint": "^6.1.3",
     "@types/fs-extra": "^8.0.1",
     "@types/html-webpack-plugin": "^3.2.1",
diff --git a/packages/vant-cli/src/compiler/compile-css.ts b/packages/vant-cli/src/compiler/compile-css.ts
index 9f718a31f..8faadc51e 100644
--- a/packages/vant-cli/src/compiler/compile-css.ts
+++ b/packages/vant-cli/src/compiler/compile-css.ts
@@ -1,12 +1,13 @@
 import postcss from 'postcss';
 import postcssrc from 'postcss-load-config';
+import { minify } from 'csso';
 import { POSTCSS_CONFIG_FILE } from '../common/constant';
 
 export async function compileCss(source: string | Buffer) {
   const config = await postcssrc({}, POSTCSS_CONFIG_FILE);
-  const output = await postcss(config.plugins as any).process(source, {
+  const { css } = await postcss(config.plugins as any).process(source, {
     from: undefined
   });
 
-  return output;
+  return minify(css).css;
 }
diff --git a/packages/vant-cli/src/compiler/compile-style.ts b/packages/vant-cli/src/compiler/compile-style.ts
index 4fd246eff..8f15f4eba 100644
--- a/packages/vant-cli/src/compiler/compile-style.ts
+++ b/packages/vant-cli/src/compiler/compile-style.ts
@@ -23,7 +23,7 @@ async function compileFile(filePath: string) {
 }
 
 export async function compileStyle(filePath: string) {
-  const content = await compileFile(filePath);
+  const css = await compileFile(filePath);
 
-  writeFileSync(replaceExt(filePath, '.css'), content);
+  writeFileSync(replaceExt(filePath, '.css'), css);
 }
diff --git a/packages/vant-cli/yarn.lock b/packages/vant-cli/yarn.lock
index 8b6c485c8..ce70519a0 100644
--- a/packages/vant-cli/yarn.lock
+++ b/packages/vant-cli/yarn.lock
@@ -1252,6 +1252,18 @@
   dependencies:
     "@types/node" "*"
 
+"@types/css-tree@*":
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/@types/css-tree/-/css-tree-1.0.3.tgz#69112ebce09f582c9e0f32a46de2598930847cd7"
+  integrity sha512-ScS4V2j9vL6aMzCIPxJLGKqyslg8zEj+XkzUXCDMHbFftakwEl9WL6RBj3VBTH4O+EVwUM3umZTwu0ZedXyuaA==
+
+"@types/csso@^3.5.1":
+  version "3.5.1"
+  resolved "https://registry.yarnpkg.com/@types/csso/-/csso-3.5.1.tgz#f923bc919bfc89c1b5d149cff80d7bfb5e8e1e8d"
+  integrity sha512-NnALC1ZR5H4kg/9wUOa8/U2HOAwN4O71Av90HClgCteuwj6UHBEr37I0Cl10EY2gHd5p/JtsbY2r0WbOhYN+gw==
+  dependencies:
+    "@types/css-tree" "*"
+
 "@types/eslint-visitor-keys@^1.0.0":
   version "1.0.0"
   resolved "https://registry.npm.taobao.org/@types/eslint-visitor-keys/download/@types/eslint-visitor-keys-1.0.0.tgz?cache=0&sync_timestamp=1572470950582&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2F%40types%2Feslint-visitor-keys%2Fdownload%2F%40types%2Feslint-visitor-keys-1.0.0.tgz#1ee30d79544ca84d68d4b3cdb0af4f205663dd2d"