Lubricating oil and grease are used in the industrial lubrication field. However, the lubricating effect of lubricating oil and grease will be reduced under high temperature and high pressure environment. Nano graphite is used as a lubricating additive and added to the production of lubricating oil and grease. , Nano graphite can improve its lubricating performance and high temperature resistance. Nano-graphite is a layered inorganic substance. Adding nano-graphite lubricating oil and grease to lubrication performance, high temperature resistance, wear resistance, anti-wear performance, etc., is significantly improved. The application effect of nano graphite in grease is better than that in lubricating oil. Preferably, nano-graphite can be made into nano-graphite solid lubricating dry film, which can be applied to the rolling surface of heavy-duty bearings. The coating formed by nano-graphite can effectively isolate the corrosive medium and play a good lubricating effect.