The utility model relates to the technical field of lifting, in particular to a building wallboard lifting appliance which comprises a mounting box, a stabilizing device and a clamping plate device, by arranging the stabilizing device, the lifting appliance is kept stable in the transportation process of the wallboards, and by arranging the clamping device, the wallboards placed on the first placing plate and the second placing plate are fixed, so that the wallboards are prevented from sliding and separating in the transportation process; and meanwhile, the height between the first placement plate and the second placement plate and the height between the installation boxes can be adjusted according to actual requirements to fix the wallboards up and down, the wallboards are prevented from sliding off in the transportation process, and the stability of the wallboards in the transportation process is improved.