Deep squat trainer

The invention discloses a deep squat training aid, which belongs to the technical field of training aids and comprises a support and an inclined frame mounted on the support, pedals are mounted at the lower end of the inclined frame, a first guide wheel is mounted at the lower end of the inclined frame, a first steel wire is connected onto a backrest, and one end, far away from the backrest, of the first steel wire bypasses the guide wheel and is connected onto a sliding plate. When the backrest slides on the inclined frame, the backrest drives the sliding plate to reciprocate on the tank body through the first steel wire. The length of the part, extending out of the end of the tank body, of the first steel wire is twice the shortened length of the elastic cylinder, the length of the elastic cylinder can be shortened, and therefore the length of the whole tank body can be shortened, in the exercise process, the elasticity of the front section of the device is small, the elasticity of the middle section is mod