diff --git a/CHANGELOG.en-US.md b/CHANGELOG.en-US.md
index 4f281641073..cb706092429 100644
--- a/CHANGELOG.en-US.md
+++ b/CHANGELOG.en-US.md
@@ -5,6 +5,7 @@
 ### Fixes
 
 - Fix `n-data-table` may have multiple expand trigger with tree data.
+- Fix `n-input-number` misalignment issue when used in `n-input-group` with `n-input-group-label`, closes [#6608](https://github.com/tusen-ai/naive-ui/issues/6608).
 
 ## 2.40.4
 
diff --git a/CHANGELOG.zh-CN.md b/CHANGELOG.zh-CN.md
index 4c4f475a841..9cdac6f74a3 100644
--- a/CHANGELOG.zh-CN.md
+++ b/CHANGELOG.zh-CN.md
@@ -5,6 +5,7 @@
 ### Fixes
 
 - 修复 `n-data-table` 在使用树形数据的时候出现多个展开 icon
+- 修复 `n-input-number` 在 `n-input-group` 中配合 `n-input-group-label` 使用时两者错位的问题，关闭 [#6608](https://github.com/tusen-ai/naive-ui/issues/6608)
 
 ## 2.40.4
 
diff --git a/src/input-number/src/styles/input-number.cssr.ts b/src/input-number/src/styles/input-number.cssr.ts
index 686397dc662..ec55e9dea87 100644
--- a/src/input-number/src/styles/input-number.cssr.ts
+++ b/src/input-number/src/styles/input-number.cssr.ts
@@ -1,6 +1,8 @@
-import { c, cB } from '../../../_utils/cssr'
+import { cB } from '../../../_utils/cssr'
 
-export default c([
+export default cB('input-number', `
+  display: inline-flex;
+  `, [
   cB('input-number-suffix', `
     display: inline-block;
     margin-right: 10px;