The invention relates to an electric nursing bed which can be driven in an electric manner and vertically lift the nursing bed surface as a whole and a lifting method, the electric nursing bed comprises a base, two sets of supporting bent frames are respectively hinged with connecting lugs at two ends of the base and can rotate around a pin shaft, two ends of a motor supporting frame are respectively hinged with the connecting lugs on the supporting bent frames, the motor supporting frame can rotate, the electric nursing bed comprises four transmission connecting rods, one end of each transmission connecting rod is respectively hinged with a cross beam of the base through the connecting lug, the other end of each is respectively hinged with the connecting lug in the supporting bent frame,and a motor is used for driving the motor supporting frame to lift through a power transfer connecting rod hinged with the motor supporting frame. The electric nursing bed has the following advantages: 1) the structural design is novel, special and simple, only one thrust motor is needed, and the electric nursing bed can not only realize vertical lifting of the bed surface as the whole, but also realize smooth lifting; and 2) the cost is low and the application range is wide.