The invention discloses a push bending forming device adopting push-pull integrated loading and a method. The push bending forming device comprises a main push cylinder, a supporting device, a push rod, a blank
pipe and a die, wherein the supporting device is installed at the output end of the main push cylinder, one end of the push rod is installed at the front end of the supporting device, and the other end of the push rod pushes the blank
pipe to move towards the die; the die is positioned in front of the blank
pipe, and the blank pipe is sequentially filled with a plurality of polyurethanefilling blocks; an auxiliary
hydraulic cylinder is arranged in the supporting device, the
tail part of the auxiliary
hydraulic cylinder is fixed to the inner wall of the rear end surface of the supporting device, and the output end is arranged towards the push rod; and a steel
wire rope is detachably connected to the output end of the auxiliary
hydraulic cylinder, the other end of the steel wirerope penetrates through the push rod, and the
polyurethane filling blocks are sequentially connected to the other end of the steel
wire rope. According to the push bending forming device adopting push-pull integrated loading and the method, the push cylinder and a top cylinder are integrated, the angles of the push cylinder and the top cylinder do not need to be adjusted when pipes are bent with different angles, and the supporting mode of the
polyurethane filling blocks is changed meanwhile, so that efficient push bending forming of the pipes is realized.