diff --git a/components/select/style/single.ts b/components/select/style/single.ts
index 5f2769c647ed..c54d953cf771 100644
--- a/components/select/style/single.ts
+++ b/components/select/style/single.ts
@@ -8,11 +8,6 @@ import type { SelectToken } from './token';
 function genSizeStyle(token: SelectToken, suffix?: string): CSSObject {
   const { componentCls, inputPaddingHorizontalBase, borderRadius } = token;
 
-  const selectHeightWithoutBorder = token
-    .calc(token.controlHeight)
-    .sub(token.calc(token.lineWidth).mul(2))
-    .equal();
-
   const suffixCls = suffix ? `${componentCls}-${suffix}` : '';
 
   return {
@@ -45,7 +40,6 @@ function genSizeStyle(token: SelectToken, suffix?: string): CSSObject {
         `]: {
           display: 'block',
           padding: 0,
-          lineHeight: unit(selectHeightWithoutBorder),
           transition: `all ${token.motionDurationSlow}, visibility 0s`,
           alignSelf: 'center',
         },
@@ -96,9 +90,6 @@ function genSizeStyle(token: SelectToken, suffix?: string): CSSObject {
           [`${componentCls}-selection-search-input`]: {
             fontSize: token.fontSize,
           },
-          '&:after': {
-            lineHeight: unit(selectHeightWithoutBorder),
-          },
         },
       },