The invention relates to a multifunctional horizontal electric sliding body builder in the field of health and fitness facilities. Left and right aluminum tube sliding rails are respectively formed by connecting two sliding rails through a middle connecting plate, an abdominal pad frame and an abdominal safety cushion are arranged in the middle of the middle connecting plate, two ends of each of the left and right aluminum tube sliding rails are respectively connected to the front support and a rear support, the left and right aluminum tube sliding rails are provided with front connecting plates, and the front connecting plates are provided with hand pads and heart pulse handles. An electric lifting machine is arranged on the front support and connected with two ends of each of the left and right aluminum tube sliding rails through transverse top plates, moving wheels are arranged at the bottom of the front support, the front support and the ends of the left and right aluminum tube sliding rails are connected with a front protective cover, the front protective cover is provided with an electronic control display screen, the left and right aluminum tube sliding rails are provided with left hand sliding seat, a right hand sliding seat, a left leg sliding seat and a right leg sliding seat, and the sliding seats are connected and fixed on electric push rods under the left and right aluminum tube sliding rails though U-shaped iron pieces. The multifunctional horizontal electric sliding body builder has the advantages of enabling all of muscles, bones, tendons and muscles to stretch in a zero-gravity mode and achieving body building and strengthening.