diff --git a/blog.config.js b/blog.config.js
index 653d3fe3..2c48088d 100644
--- a/blog.config.js
+++ b/blog.config.js
@@ -43,6 +43,7 @@ const BLOG = {
 
   // PrismJs CDN
   PRISM_JS_PATH: 'https://npm.elemecdn.com/prismjs@1.29.0/components/',
+  CODE_LINE_NUMBERS: process.env.NEXT_PUBLIC_CODE_LINE_NUMBERS || 'false',
 
   BACKGROUND_LIGHT: '#eeeeee', // use hex value, don't forget '#' e.g #fffefc
   BACKGROUND_DARK: '#000000', // use hex value, don't forget '#'
diff --git a/components/PrismMac.js b/components/PrismMac.js
index 11673d46..41d5e588 100644
--- a/components/PrismMac.js
+++ b/components/PrismMac.js
@@ -73,16 +73,17 @@ function renderPrismMac() {
   const container = document?.getElementById('container-inner')
 
   // Add line numbers
-  const codeBlocks = container?.getElementsByTagName('pre')
-  if (codeBlocks) {
-    Array.from(codeBlocks).forEach(item => {
-      if (!item.classList.contains('line-numbers')) {
-        item.classList.add('line-numbers')
-        item.style.whiteSpace = 'pre-wrap'
-      }
-    })
+  if (BLOG.CODE_LINE_NUMBERS === 'true') {
+    const codeBlocks = container?.getElementsByTagName('pre')
+    if (codeBlocks) {
+      Array.from(codeBlocks).forEach(item => {
+        if (!item.classList.contains('line-numbers')) {
+          item.classList.add('line-numbers')
+          item.style.whiteSpace = 'pre-wrap'
+        }
+      })
+    }
   }
-
   // 重新渲染之前检查所有的多余text
 
   try {