diff --git a/Java/378_Kth Smallest Element in a Sorted Matrix b/Java/378_Kth Smallest Element in a Sorted Matrix
new file mode 100644
index 00000000..6ea7fcbb
--- /dev/null
+++ b/Java/378_Kth Smallest Element in a Sorted Matrix	
@@ -0,0 +1,21 @@
+class Solution {
+    public int kthSmallest(int[][] matrix, int k) {
+        int m = matrix.length, n = matrix[0].length;
+        int low = matrix[0][0], high = matrix[m-1][n-1];
+        while(low < high){
+            int mid = (high - low)/2 + low;
+            int count = 0;
+            int j = n - 1;
+            for(int i = 0; i < m; i++){
+                while(j >= 0 && matrix[i][j] > mid)
+                    j--;
+                count += j + 1;
+            }
+            if(count < k)
+                low = mid + 1;
+            else
+                high = mid;
+        }
+        return low;
+    }
+}