The utility model relates to an electric bed, which comprises a base and a power source.The base is provided with a sliding seat, which allows a back plate frame and a head plate frame to be connected to the same end of the sliding seat in a swing way. The back plate frame has two bases, and at least one base has a long hole.The power source drives a driving part to engage in telescoping motion, and connects the driving part with a head plate driving part through a back plate driving part.The back plate drive is connected to the base by a bolt through a long hole, and the support back plate drive and the back plate frame are maintained in an inclined state.When the power source is started, the driving part of the back plate is driven by the driving part, and the bolt is displaced in the long hole, and the driving part of the supporting head plate lifts an angle against the head plate frame.When the bolt is blocked on the wall surface of the long hole, the back plate driver drives the head plate driver, and the support head plate frame and the back plate frame continue to lift.一種電動床，包括：一底座與一動力源。該底座配置一滑座，允許一背板架與一頭板架可擺動的連接於滑座的同一端，該背板架有二基座，至少一基座有一長孔。該動力源驅使一驅動件從事伸縮運動，透過一背板驅動件將驅動件與一頭板驅動件相連。該背板驅動件被一通過長孔的螺栓聯結於基座上，支撐背板驅動件與背板架維持在一傾斜狀態。當動力源啟動，該背板驅動件被驅動件驅動連帶螺栓在長孔位移，支持頭板驅動件頂著頭板架揚升一角度。在螺栓受阻於長孔壁面時，該背板驅動件驅動頭板驅動件，支撐頭板架與背板架繼續進行揚升運動。
