Ankle joint movement injury rehabilitation equipment and use method thereof

The invention provides ankle joint movement injury rehabilitation equipment and a using method thereof, and relates to the field of movement injury rehabilitation equipment, the ankle joint movement injury rehabilitation equipment comprises a footbath, the footbath is provided with an accommodating cavity exposed outwards and a plurality of open grooves arrayed in the side wall of the footbath, piston heads in sliding fit with the open grooves are arranged in the open grooves, and the piston heads are arranged in the accommodating cavity. A sand pile is arranged in the accommodating cavity, and a pedal plate capable of penetrating into the sand pile or moving out of the sand pile is arranged in the sand pile; and the soft rod array is arranged at the pedal plate, one end of the soft rod array is connected with the pedal plate, the other end of the soft rod array extends into the open groove to be connected with the piston head, and the soft rod array is used for pulling the piston head by the soft rod when a