The utility model relates to an electric bed, which has a mattress, a bedstead and a board group. The board group is arranged on the bedstead to facilitate the mattress to be spread on the board group, and an air bag is arranged between the mattress and the board group. When the air bag is filled with gas, the air bag is expanded, and the relative position of the supporting mattress is bulged. Therefore, the air bag supports a mattress bulge facing a user's hip, waist, back, neck or head.一種電動床，其有一床墊、一床架與一板組，該板組設在床架，方便床墊鋪在板組上面，並在床墊與板組之間設置一氣囊。在氣體充滿氣囊時，該氣囊是膨脹的，支撐床墊相對位置予以隆起。因此，該氣囊支撐床墊隆起處面對一使用者的臀部、腰部、背部、頸部或頭部。
