A carbon fiber material and a high-pressure rolling process are provided. The carbon fiber material comprises a carbon fiber layer, a polyacrylamide layer and a parylene layer which are arranged sequentially from inside to outside. Surface roughness of carbon fiber is increased from original Ra 6.3 to Ra 2.4-Ra 0.2 micrometer, and mirror precision of Ra 0.05-0.1 mu m can be achieved through control conditions; the surface is extrude-hardened, and wear resistance and fatigue strength are improved; plastic deformation due to surface stress is eliminated, the dimensional precision can be kept stable for long time; after being rolled, the carbon fiber material may gain hardness increased to 15-30% and fatigue resistance increased to 15% and above; the surface of the rolled fiber material is deformed so that surface structure cold-hardened and crystal grains are thinned, compact fiber is formed, a residual stress layer is formed, hardness and strength are improved, and surface wear resistance, corrosion resistance and fitness of the original material are improved; the shear strength of the finished product produced by the process is increased from 55-70 MPa to 95-99 MPa.