The utility model relates to the technical field of
medical instruments, in particular to an auxiliary limb exercise device which comprises a vehicle body provided with a base. A rotating shaft is rotationally connected to the middle of the vehicle body, and pedal assemblies are fixedly mounted at the two ends of the rotating shaft; wherein the lower portion of the bottom of the vehicle body is further connected with a carrying seat in a sliding mode, a driving
assembly is arranged on the side edge of the carrying seat, and the driving
assembly is used for driving the rotating shaft to rotate. In the automatic auxiliary mode, the pedals automatically rotate, the two legs of the user are pulled to bend knees in a reciprocating mode, the exercise requirements of the user with difficulty in knee bending in the early stage can be met, the two operation
modes can meet the exercise requirements of the user in different periods, and therefore the applicability of knee bending exercise is greatly improved.