As an advanced lightweight material, Al–Li alloy has relatively low density, high specific strength and stiffness and good fatigue properties. It is widely used in the field of aerospace. However, adhesion wear is easy to occur in the cutting of Al–Li alloy, which leads to a series of problems, such as poor machining quality and service performance. Therefore, domestic and foreign scholars have carried out relevant research on the machining of Al–Li alloy. This paper summarizes the research on the cutting experiments of Al–Li alloy in recent years, focuses on the research results of cutting force, cutting temperature, machined surface quality, tool wear and parameter optimization. The existing problems and future development direction are pointed out. It can promote the development of Al–Li alloy cutting technology.