diff --git a/problems/0098.验证二叉搜索树.md b/problems/0098.验证二叉搜索树.md
index baa3f435..ddd634b4 100644
--- a/problems/0098.验证二叉搜索树.md
+++ b/problems/0098.验证二叉搜索树.md
@@ -260,7 +260,25 @@ Python：
 
 
 Go：
+```Go
+import "math"
 
+func isValidBST(root *TreeNode) bool {
+	if root == nil {
+		return true
+	}
+	return isBST(root, math.MinInt64, math.MaxFloat64)
+}
+func isBST(root *TreeNode, min, max int) bool {
+	if root == nil {
+		return true
+	}
+	if min >= root.Val || max <= root.Val {
+		return false
+	}
+	return isBST(root.Left, min, root.Val) && isBST(root.Right, root.Val, max)
+}
+```