diff --git a/src/components/WatchVideo.vue b/src/components/WatchVideo.vue
index d2888a25..2db7e5b1 100644
--- a/src/components/WatchVideo.vue
+++ b/src/components/WatchVideo.vue
@@ -63,7 +63,7 @@
                     </div>
                     <p>{{ comment.commentText }}</p>
                     <div>
-                        <b>{{ comment.likeCount }}</b>
+                        <b>{{ numberFormat(comment.likeCount) }}</b>
                         &nbsp;
                         <font-awesome-icon icon="thumbs-up"></font-awesome-icon>
                         &nbsp;
diff --git a/src/main.js b/src/main.js
index ec88fc6e..dcaaf273 100644
--- a/src/main.js
+++ b/src/main.js
@@ -33,6 +33,22 @@ const mixin = {
 
             return str;
         },
+        numberFormat(num) {
+            const digits = 2;
+            const si = [
+                { value: 1, symbol: "" },
+                { value: 1E3, symbol: "k" },
+                { value: 1E6, symbol: "M" },
+                { value: 1E9, symbol: "B" }
+            ];
+            const rx = /\.0+$|(\.[0-9]*[1-9])0+$/;
+            for (var i = si.length - 1; i > 0; i--) {
+                if (num >= si[i].value) {
+                    break;
+                }
+            }
+            return (num / si[i].value).toFixed(digits).replace(rx, "$1") + si[i].symbol;
+        },
         fetchJson: function (url, options) {
             return fetch(url, options).then(response => {
                 return response.json();