The invention discloses a holding robot used for rehabilitation training and an operating method of the holding robot. The device comprises a base, a crawler-type walking machine, a counter weight mechanism and a movement part, wherein the movement part comprises an up-down movement platform, a left-right movement platform and a parallel-four-bar movement platform, and each movement platform is composed of a motor, a platform fixing plate, a gear block and an output end. With the adoption of the holding robot and the operating method provided by the invention, the rehabilitation training with two linear degrees of freedom and one rotation degree of freedom on the hip of the body can be realized in the gait training process, the physiological movement of the hip in the gait training can be highly simulated, and the rehabilitation training effect is effectively enhanced.