The invention discloses a detachable multifunctional electric wheelchair bed. The detachable multifunctional electric wheelchair bed comprises a bed body and a wheelchair, wherein the bed body comprises a frame, a bed board, guide rails, armrests, rails and wheels. A wheelchair body comprises a backrest, armrests, a folding table, backrest electric push rods, a wheelchair seat plate, a wheelchairframe, wheelchair base electric push rods, leg supporting electric push rods, foot connecting electric push rods, leg supporting plates, foot supporting plates and chair wheels. According to the detachable wheelchair bed, the bed body can be separated from the wheelchair; the functions of all the parts are achieved through opening and closing of electromagnetic pins; a motor and a rod machine aresupported by power, so the wheelchair bed can be freely converted to realize nursing bed functions such as leg bending, back supporting and rollover and a function of supporting eating; the multifunctional wheelchair bed has the functions of a conventional wheelchair while meeting daily behavior requirements such as supination, sitting up, leg bending and leftward and rightward rollover; after thewheelchair is separated from the nursing bed, the bed can still be used.