diff --git b/toeplitzmatrix.py a/toeplitzmatrix.py
new file mode 100644
index 0000000..0763bce
--- /dev/null
+++ a/toeplitzmatrix.py
@@ -0,0 +1,37 @@
+
+class Solution:
+    def isToeplitzMatrix(self, matrix):
+        pass
+        """
+        :type matrix: List[List[int]]
+        :rtype: bool
+        
+        解题思路：遍历每一个元素，同时比较这个元素和它右下角元素的值是否相等，如果不相等，直接返回false，停止遍历
+        """
+
+        for i in range(len(matrix)-1):
+            for j in range(len(matrix[i])-1):
+                if (matrix[i + 1][j + 1] != matrix[i][j]):
+                    return False
+
+            return True
+
+
+
+
+
+if __name__ == "__main__":
+  solution = Solution()
+
+  matrix = [
+      [1, 2],
+      [2, 2]
+  ]
+  print(solution.isToeplitzMatrix(matrix))
+
+  matrix = [
+      [1, 2, 3, 4],
+      [5, 1, 2, 3],
+      [9, 5, 1, 2]
+  ]
+  print(solution.isToeplitzMatrix(matrix))
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