Provided is a pneumatic inclined vertical back knocker. The pneumatic inclined vertical back knocker is formed by connecting a base plate, a bracket, a support, a neck supporting plate, a hip supporting plate, slideways, sleeves, handles, knocking hammers and tension springs; the base plate is a frame or a plate body which is shaped like a triangle, and the bracket and the support are connected to the base plate respectively; the length of the pneumatic support can be changed, and the purpose of changing the angle of inclination of the bracket is achieved; the bracket is a door-shaped frame, the supporting plates and the slideways are connected to the bracket respectively, one sleeve is installed on each slideway, the handles and the knocking hammers are connected to the sleeves, and the hammerheads of the knocking hammers correspond to the back position of a human body; a person pulls the handles by hand, the sleeves can drive the knocking hammers to do left and right arc movement, the moving hammerheads can continuously knock the muscle area of the back of the human body, and therefore the purpose of knocking the back is achieved.