According to the special characteristics of the work, wall climbing robot must have two basic functions of adsorption and movement, so a kind of pneumatic drive, vacuum adsorption and flexible moving symmetric type wall climbing robot was designed. The main part of the robot was composed of organic glass, which could not only reduce the weight of the robot, but also increase the overall stiffness of the robot. The main components of the robot were the cylinder and the vacuum sucker, which used the MITSUBISHI FN series for programmable logical controller (PLC) for control. The main cylinder of X direction and Y direction and the sub cylinder of Z direction were interacted to complete the body movement, the suction cup group adsorption and detachment, and other auxiliary functions. The robots overall control to achieve robot operations can reduce the labor intensity of manual work, and prevent the workers from the wall of safety accidents.