diff --git a/CHANGELOG.en-US.md b/CHANGELOG.en-US.md
index e3aafc826d9..55a96513ce1 100644
--- a/CHANGELOG.en-US.md
+++ b/CHANGELOG.en-US.md
@@ -1,5 +1,13 @@
 # CHANGELOG
 
+## NEXT_VERSION
+
+`xxxx-xx-xx`
+
+### Fixes
+
+- Fix `n-descriptions-item`'s prop `label-class` and `content-class` not working, closes [#6290](https://github.com/tusen-ai/naive-ui/issues/6290).
+
 ## 2.41.0
 
 ### Breaking Changes
diff --git a/CHANGELOG.zh-CN.md b/CHANGELOG.zh-CN.md
index dd6c97db9d9..de6335b368e 100644
--- a/CHANGELOG.zh-CN.md
+++ b/CHANGELOG.zh-CN.md
@@ -1,5 +1,13 @@
 # CHANGELOG
 
+## NEXT_VERSION
+
+`xxxx-xx-xx`
+
+### Fixes
+
+- 修复 `n-descriptions-item` 的属性 `label-class` 和 `content-class` 不生效, 关闭 [#6290](https://github.com/tusen-ai/naive-ui/issues/6290)
+
 ## 2.41.0
 
 `2025-01-05`
diff --git a/src/descriptions/src/Descriptions.tsx b/src/descriptions/src/Descriptions.tsx
index 2a787a25e16..2ed636cf6a2 100644
--- a/src/descriptions/src/Descriptions.tsx
+++ b/src/descriptions/src/Descriptions.tsx
@@ -156,8 +156,6 @@ export default defineComponent({
     const children = defaultSlots ? flatten(defaultSlots()) : []
     const memorizedLength = children.length
     const {
-      contentClass,
-      labelClass,
       compitableColumn,
       labelPlacement,
       labelAlign,
@@ -202,8 +200,12 @@ export default defineComponent({
       state.span += itemSpan
       const labelStyle
         = props.labelStyle || props['label-style'] || this.labelStyle
+      const labelClass
+        = props.labelClass || props['label-class'] || this.labelClass
       const contentStyle
         = props.contentStyle || props['content-style'] || this.contentStyle
+      const contentClass
+        = props.contentClass || props['content-class'] || this.contentClass
       if (labelPlacement === 'left') {
         if (bordered) {
           state.row.push(