diff --git a/docs/docs/blog/legacy-browser.en-US.md b/docs/docs/blog/legacy-browser.en-US.md
index e403e2ec7078..f1c92647e2d1 100644
--- a/docs/docs/blog/legacy-browser.en-US.md
+++ b/docs/docs/blog/legacy-browser.en-US.md
@@ -9,7 +9,7 @@ group:
 
 ## 默认兼容说明
 
-Umi 4 默认不支持 IE ，编译兼容目标 `targets` 为 `chrome: 40` ，如需调整，请指定明确的 [targets](../docs/api/config#targets) ：
+Umi 4 默认不支持 IE ，编译兼容目标 `targets` 为 `{}` ，如需调整，请指定明确的 [targets](../docs/api/config#targets) ：
 
 ```ts
 // .umirc.ts
diff --git a/docs/docs/blog/legacy-browser.md b/docs/docs/blog/legacy-browser.md
index 8bdfbf2c6679..e37bb3a8204f 100644
--- a/docs/docs/blog/legacy-browser.md
+++ b/docs/docs/blog/legacy-browser.md
@@ -9,7 +9,7 @@ group:
 
 ## 默认兼容说明
 
-Umi 4 默认不支持 IE ，编译兼容目标 `targets` 为 `chrome: 40` ，如需调整，请指定明确的 [targets](../docs/api/config#targets) ：
+Umi 4 默认不支持 IE ，编译兼容目标 `targets` 为 `{}` ，如需调整，请指定明确的 [targets](../docs/api/config#targets) ：
 
 ```ts
 // .umirc.ts
diff --git a/docs/docs/docs/api/config.md b/docs/docs/docs/api/config.md
index 91eacf3c23ea..cb2831cb87c6 100644
--- a/docs/docs/docs/api/config.md
+++ b/docs/docs/docs/api/config.md
@@ -1467,10 +1467,12 @@ import SmileUrl, { ReactComponent as SvgSmile } from './smile.svg';
 ## targets
 
 - 类型：`object`
-- 默认值：`{ chrome: 40 }`
+- 默认值：`{}`
 
 配置需要兼容的浏览器最低版本。Umi 会根据这个自定引入 polyfill、配置 autoprefixer 和做语法转换等。
 
+如果你不需要兼容早期浏览器，减少产物构建尺寸, 请将 `targets` 配置为 `{chrome: "80"}`。
+
 示例，
 
 ```js
diff --git a/packages/bundler-webpack/client/constants.js b/packages/bundler-webpack/client/constants.js
index 2bce2281d178..4eb23e386166 100644
--- a/packages/bundler-webpack/client/constants.js
+++ b/packages/bundler-webpack/client/constants.js
@@ -11,9 +11,7 @@ var MESSAGE_TYPE = /* @__PURE__ */ ((MESSAGE_TYPE2) => {
   MESSAGE_TYPE2["invalid"] = "invalid";
   return MESSAGE_TYPE2;
 })(MESSAGE_TYPE || {});
-var DEFAULT_BROWSER_TARGETS = {
-  chrome: 40
-};
+var DEFAULT_BROWSER_TARGETS = {};
 var DEFAULT_ESBUILD_TARGET_KEYS = [
   "chrome",
   "firefox",
diff --git a/packages/bundler-webpack/src/config/compressPlugin.ts b/packages/bundler-webpack/src/config/compressPlugin.ts
index 971021e13670..36b684eda0ba 100644
--- a/packages/bundler-webpack/src/config/compressPlugin.ts
+++ b/packages/bundler-webpack/src/config/compressPlugin.ts
@@ -33,7 +33,7 @@ export async function addCompressPlugin(opts: IOpts) {
 
   // esbuild transform only allow `string[]` as target
   const esbuildTarget = getEsBuildTarget({
-    targets: { chrome: '80' },
+    targets: userConfig.targets || {},
     jsMinifier,
   });
   // 提升 esbuild 压缩产物的兼容性，比如不出现 ?? 这种语法
diff --git a/packages/bundler-webpack/src/constants.ts b/packages/bundler-webpack/src/constants.ts
index d4a75b03f98e..ecb3761a69ff 100644
--- a/packages/bundler-webpack/src/constants.ts
+++ b/packages/bundler-webpack/src/constants.ts
@@ -11,9 +11,7 @@ export enum MESSAGE_TYPE {
   invalid = 'invalid',
 }
 
-export const DEFAULT_BROWSER_TARGETS = {
-  chrome: 40,
-};
+export const DEFAULT_BROWSER_TARGETS = {};
 
 export const DEFAULT_ESBUILD_TARGET_KEYS = [
   'chrome',