Carbon fiber (carbon fiber, known as CF) is above 95% with a carbon content of high strength and high modulus fibre of new type fiber materials. It is made of organic fibers such as Flake graphite microcrystals formed along the axial direction of fibers and a pile, obtained by carbonization and graphitization of microcrystalline graphite material. Carbon fiber "velvet glove", quality is lighter than aluminum, but stronger than steel, and has the characteristics of corrosion resistance, high modulus, in defence and military and civilian aspects were important material. It not only has the natural intrinsic characteristics of carbon material, and also soft processing of textile fibers, is a new generationof reinforcement fibres. many excellent properties of carbon fiber, carbon fiber axial strength and modulus, low density,high specific performances, creep, non-oxidizing environment under ultra high temperature resistance, good fatigue resistance, between the specific heat and conductivity of Nonmetal and metal, small thermal expansion coefficient, and anisotropy, good corrosion resistance, good through x-ray. Good electrical and thermal conductivity, good electromagnetic shielding.