An electric bed comprises a main bed frame and a movable auxiliary bed frame, wherein the auxiliary bed frame is sequentially provided with a bottom plate, a base plate and a backing plate, the front end of the base plate is rotatably connected to the front end of the auxiliary bed frame, the rear end of the bottom plate is rotatably connected to the front end of the base plate, the front end of the backing plate is rotatably connected to the rear end of the base plate, a first electric telescopic rod and a second electric telescopic rod for driving the bottom plate and the backing plate to be unfolded and stored are provided between the bottom plate and the main bed frame and between the backing plate and the auxiliary bed frame, respectively, and a linkage member is provided between the bottom plate and the main bed frame.
