diff --git a/suhwan2004/Path Sum.js b/suhwan2004/Path Sum.js
new file mode 100644
index 0000000..50dfb7f
--- /dev/null
+++ b/suhwan2004/Path Sum.js	
@@ -0,0 +1,27 @@
+/*
+18:30 ~ 18:49
+Time : O(N)
+Space : O(N)
+ALGO : dfs
+DS : tree
+Constraints : 
+- 트리 노드들의 갯수는 0개에서 5000개 사이
+- -1000 <= Node.val <= 1000
+- -1000 <= targetSum <= 1000
+Edge Case : root가 없을 시에 바로 false
+*/
+
+var hasPathSum = function(root, targetSum) {
+    if(!root) return false
+    return dfs(root, 0, targetSum)
+};
+
+const dfs = (node, sum, targetSum) => {
+    let curSum = sum + node.val
+    if(!node.left && !node.right) return targetSum === curSum
+
+    const leftRes = node.left ? dfs(node.left, curSum, targetSum) : false
+    const rightRes = node.right ? dfs(node.right, curSum, targetSum) : false
+
+    return leftRes || rightRes
+}
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