diff --git a/src/main/java/com/never/basic/InsertSort.java b/src/main/java/com/never/basic/InsertSort.java
new file mode 100644
index 0000000..8b6ef9f
--- /dev/null
+++ b/src/main/java/com/never/basic/InsertSort.java
@@ -0,0 +1,18 @@
+package com.never.basic;
+
+public class InsertSort {
+    public void insertSort(int[] arr){
+        if(arr == null ||arr.length<2){
+            return;
+        }
+        int minIndex = 0;
+        for(int end = 1; end < arr.length; end ++){
+            minIndex = end;
+
+            while(minIndex>0 && arr[minIndex]<arr[minIndex-1]){
+                CommonUtil.swapIndex(arr,minIndex,minIndex-1);
+                minIndex--;
+            }
+        }
+    }
+}
diff --git a/src/main/java/com/never/basic/SortDemo.java b/src/main/java/com/never/basic/SortDemo.java
index 180f413..c9d9133 100644
--- a/src/main/java/com/never/basic/SortDemo.java
+++ b/src/main/java/com/never/basic/SortDemo.java
@@ -10,7 +10,8 @@ public class SortDemo {
         int[]  arr = {11,2,5,3,6,13,7};
         printArr(arr);
       //  new SelectSort().selectSort(arr);
-        new BubbleSort().bubbleSort(arr);
+      //  new BubbleSort().bubbleSort(arr);
+        new InsertSort().insertSort(arr);
         printArr(arr);
     }