The invention discloses a medical multifunctional foot exercise device for the rehabilitation department. The medical multifunctional foot exercise device comprises a bed body, a shank plate, a thigh plate, a seat plate, an upper body plate, a forced exercise driving device, an upper body plate angle adjusting device and a controller. The shank plate is hinged to the thigh plate, the thigh plate is rotationally connected with the bed body, the shank plate is slidably connected with the bed body, a plurality of tension springs are arranged at the end, away from the thigh plate, of the shank plate, and the other ends of the tension springs are connected with the bed body. The seat plate is set at the middle section of the bed body, and the upper body plate is rotatingly connected to the bed body. The forced exercise driving device is arranged on the lower surface of the bed body and movably connected with the shank plate, and the upper body plate angle adjusting device is connected with the upper body plate through a connecting rod; through the arrangement of the shank plate, the thigh plate and the tension spring, a patient can conveniently and actively do leg bending and stretching exercise, and through the arrangement of the forced exercise driving device, the patient who is incapable of doing self-exercise can be helped to do leg bending and stretching exercise.