The utility model relates to an electric bed, in which a plate group is arranged on a bracket assembly, and a base is used to bear the total weight of the plate group and the bracket assembly. The bracket assembly is composed of an arch back frame which is pivoted with a front frame and a rear frame. The front and rear frames are installed on the base, and the force required for the arch back frame to move relative to the base is supplied by an arch back power unit assembled on the base. In this way, the electric bed adopts the structure of arch back frame, and the part of the electric bed facing the waist or back of the human body is raised separately, so as to easily lift the human body from the waist or back.一種電動床，將一板組配置在一支架總成上，用一底座承擔板組與支架總成的重量總和。該支架總成由一拱背架樞接一前架與一後架，前、後二架安裝在底座，通過一組裝在底座的拱背動力單元供應拱背架相對底座運動所需的作用力。如此，本創作的電動床採用拱背架的結構，取得單獨昇起電動床面對人體腰或背的部分，達到輕鬆地從腰部或背部扶起人體的效果。
