With the development of the aviation industry, manufacturers is explore to extend the life of the products, the high quality and low cost. Previously, the strips and purlins on the aircraft were made of aluminum alloy, but now these parts main use of carbon fiber reinforced plastics as a raw material, plasma plays a big role in this aspect. After the surface treatment of the plasma, the surface stability of the carbon fiber reinforced plastic is better, and the bonding and spraying process is more perfect.