In the 21st century, with the rapid development of the global economy, the application of metal materials has become more and more extensive, and good development results have been achieved in aviation, automobile, ship, household appliances and electronic communication equipment. At the same time, the requirements for the surface of metal parts are gradually improving, mainly reflected in the high temperature resistance, oxidation resistance, fatigue resistance, corrosion resistance, radiation protection, insulation, magnetic conductivity, conductivity and decoration and other special properties, effectively promoting the rapid development of metal surface treatment technology. At present, the domestic treatment methods for metal surface mainly use phosphating method. Silane treatment technology with high environmental protection effect is still in the process of continuous research and development. At present, some application results have been achieved.