Lubricating grease and preparation method and application thereof

The invention provides lubricating grease and a preparation method and application thereof. On one hand, the invention provides lubricating grease. The lubricating grease comprises the following components in percentage by mass: 84-97% of base oil, 2-10% of a thickening agent, 0-4% of an antioxidant, 0-4% of an antirust agent and 0-4% of an anti-wear reagent at extreme pressure, wherein the kinematic viscosity of the base oil at 40 DEG C is 20-150mm < 2 >/s; the thickening agent is obtained by reacting 12-hydroxystearic acid, stearic acid and lithium hydroxide. According to the invention, the base oil with proper type and viscosity is selected, and the 12-hydroxystearic acid and the stearic acid react with the lithium hydroxide to obtain the product as the thickening agent, so that the low-temperature performance of the lubricating grease is effectively improved, the cost of the base oil is lower, and the cost of the lubricating grease is further controlled. 本发明提供了一种润滑脂及其制备方法和应用。本发明一方面提供了一种润滑脂，所述润滑脂按照质量百分含量包括