Bentonite grease is a high-temperature grease without dropping point. With its excellent thermal stability and sealing performance, it is widely used in metallurgy, casting, mining machinery, heavy vehicles, papermaking, cement, tunnel kiln cars, railway locomotives, aviation bearings, and food and agricultural equipment. Its preparation process is simple, with low energy consumption and high efficiency, especially suitable for the lubrication needs of low-speed operating components. As an important lubricating material following polyurea grease, lithium-based grease, etc., bentonite grease has gradually become a development direction of great concern in high-temperature lubrication applications due to its soap-free nature and excellent environmental performance. In the context of green manufacturing and diverse oil systems coexisting, its formula adaptability and performance control capabilities have also increasingly become the focus of technological breakthroughs.