Ultrathin electric adjustable bed

A disclosed ultrathin electric adjustable bed comprises an upper bed frame, and a backboard, a seat board, a thigh board and a calf board which are in successive hinged connection; the seat board is fixedly connected with the upper bed frame; the bottom of the backboard is provided with a horizontal push motor A, two first connection rods A, a connection rack A, two secondary connection rods A and two wedge blocks A; the horizontal push motor A comprises a slide block A and a guide rail A which are in slide connection; the horizontal push motor A drives the slide block A to make reciprocating movement between an initial position and a limit position of the slide block A; and the connection rack A comprises a connection shaft A. The ultrathin electric adjustable bed comprises the following advantages that the thickness is relatively small, the bed is relatively beautiful after being flexibly packaged, is directly usable by putting on an original bedstead or floor, the thickness does not seem too high, and usage is convenient.