The invention discloses a multifunctional wheelchair which comprises a chair seat, a chair seat suspension frame, wheels and wheel suspension beams. The chair seat is fixedly connected with the chairseat suspension frame through an L-shaped supporting beam, the chair seat suspension frame enables the two wheel suspension beams to be connected through a suspension beam shaft, and the wheel suspension beams are connected with the wheels through a wheel axle. The upper surface of the chair seat suspension frame is provided with a swing rod, a steering pulley set, a motor and a rotary base, a screw of the motor is connected in a sliding sleeve of the swing rod in a sleeved way, and one end of the swing rod is connected with a movable pulley through a zigzag support. The chair seat is providedwith fixed pulleys, the wheel suspension beams are provided with steel rope fixing points, and the steel rope fixing points, the fixed pulleys, the steering pulley set and movable pulleys are serially connected through steel ropes. A suspension system of the wheels and a suspension system of the chair seat are mutually independent mutually, the two suspension systems independently operate in an inclination mode, the chair seat is basically kept in the horizontal direction during jolting of the wheels, the wheels can touch the ground and are also balanced in stress, and wheel suspension and caused turning risk do not occur.