The invention discloses a multifunctional rehabilitation training device. The multifunctional rehabilitation training device comprises a bed and an air compressor, and is further provided with a handand waist exercising mechanism, a lifting mechanism, a leg bending and stretching exercising mechanism, a control circuit, a switching power supply, a power switch and a detecting circuit, the hand and waist exercising mechanism comprises guiding rods, electromagnets, sliding plates, resistance springs, guiding wheels, lifting rings, connecting steel wire ropes, a movable supporting table, a ballscrew single linear rail sliding table and electric pushing rod equipment, the electric pushing rod equipment comprises an electric pushing rod body, a connecting guiding shell, a needle-type air cylinder and an upper piston rod, the leg bending and stretching exercising mechanism comprises motor speed reducing equipment, an active gear, a sector gear, an intermediate gear, movable plates, movablefoot sleeves, tension springs, a connecting guiding shell and a needle type air cylinder, the lifting mechanism is an electric pushing rod, and the control circuit, the switching power supply, the power switch and the detecting circuit are installed inside an element box and connected with the waist exercising mechanism, the lifting mechanism and the leg bending and stretching exercising mechanism through wires.