diff --git a/Data Structures/fenwick_tree_2d b/Data Structures/fenwick_tree_2d
new file mode 100644
index 0000000..ad2e101
--- /dev/null
+++ b/Data Structures/fenwick_tree_2d	
@@ -0,0 +1,21 @@
+class fenwick_tree_2d {
+private: int N, M, vector<vector<int>> FT;
+public:
+    fenwick_tree_2d(int n, int m) {
+        N = n + 1, M = m + 1;
+        FT.resize(N, 0);
+        for (int i = 0; i < N; i++) FT[i].resize(M, 0);
+    }
+    void update(int x, int y, int val) {
+	    for (int i = x; i < N; i += i & -i) {
+		    for (int j = y; j < M; j += j & -j) FT[i][j] += val;
+		}
+	}
+    int query(int x, int y) {
+	    int ret = 0;
+	    for (int i = x; i > 0; i -= i & -i) {
+		    for (int j = y; j > 0; j -= j & -j) ret += FT[i][j];
+		}
+	    return ans;
+    }
+}