diff --git a/CHANGELOG.en-US.md b/CHANGELOG.en-US.md
index 97fb0800f..fe9b6f94b 100644
--- a/CHANGELOG.en-US.md
+++ b/CHANGELOG.en-US.md
@@ -4,6 +4,10 @@
 
 - `n-collapsed-transition`'s `collapsed` prop is deprecated, please use `show` instead, closes [#1407](https://github.com/TuSimple/naive-ui/issues/1407).
 
+### Fixes
+
+- Fix `n-log` `font-size` prop not working, closes [#1416](https://github.com/TuSimple/naive-ui/issues/1416).
+
 ## 2.19.11 (2021-10-21)
 
 ### Fixes
diff --git a/CHANGELOG.zh-CN.md b/CHANGELOG.zh-CN.md
index 1bb81c05e..7a5ddc980 100644
--- a/CHANGELOG.zh-CN.md
+++ b/CHANGELOG.zh-CN.md
@@ -4,6 +4,10 @@
 
 - `n-collapsed-transition` 的 `collapsed` 属性被废弃，请使用 `show` 属性代替，关闭 [#1407](https://github.com/TuSimple/naive-ui/issues/1407)
 
+### Fixes
+
+- 修复 `n-log` `font-size` 属性不生效，关闭 [#1416](https://github.com/TuSimple/naive-ui/issues/1416)
+
 ## 2.19.11 (2021-10-21)
 
 ### Fixes
diff --git a/src/code/src/Code.tsx b/src/code/src/Code.tsx
index 0f77b7c0a..d3c3cfb95 100644
--- a/src/code/src/Code.tsx
+++ b/src/code/src/Code.tsx
@@ -31,6 +31,7 @@ const codeProps = {
   uri: Boolean,
   inline: Boolean,
   // In n-log, we only need to mount code's style for highlight
+  internalFontSize: Number,
   internalNoHighlight: Boolean
 }
 
@@ -117,8 +118,9 @@ export default defineComponent({
             'hue-6-2': $9
           }
         } = themeRef.value
+        const { internalFontSize } = props
         return {
-          '--font-size': fontSize,
+          '--font-size': internalFontSize ? `${internalFontSize}px` : fontSize,
           '--font-family': fontFamilyMono,
           '--font-weight-strong': fontWeightStrong,
           '--bezier': cubicBezierEaseInOut,
diff --git a/src/log/src/Log.tsx b/src/log/src/Log.tsx
index a4cfbd72a..cbff1de49 100644
--- a/src/log/src/Log.tsx
+++ b/src/log/src/Log.tsx
@@ -271,6 +271,7 @@ export default defineComponent({
             default: () => (
               <NCode
                 internalNoHighlight
+                internalFontSize={this.fontSize}
                 theme={mergedTheme.peers.Code}
                 themeOverrides={mergedTheme.peerOverrides.Code}
               >