The invention provides a golf ball head and rod changing device which comprises a ball head mounting part mounted in a ball head and a ball rod mounting part mounted on a ball rod, wherein the ball head mounting part and the ball rod mounting part are in detachable connection; a connecting shaft is arranged in the ball head mounting part; a spring sleeves the connecting shaft; clamping blocks are arranged on the side surface of the connecting shaft; an inserting part, a deflecting part and a clamping part which are corresponding to each clamping block is arranged on the ball rod mounting part. Each clamping block finally enters the corresponding clamping part through the corresponding inserting part and deflecting part, and the connecting shaft and the ball rod mounting part are clamped to be fixed through the pressure of the spring, so that connection or disassembly of the ball head and the ball rod can be realized through simple pressing and rotating operations, assembly and separation of the golf ball head and the golf ball rod are convenient, and quick replacement of the golf ball head and the golf ball rod is realized.