Characteristics of room temperature brittleness for the rare material Ti-Al intermetallic compounds limit the choice of precision machining technology and its application in aerospace and national defense to a certain extent. In order to promote the adaptability of rare alloy materials in precision machining technology and high quality and high efficiency to obtain good surface quality. This article reviews the research technology on the precision machining of Ti-Al intermetallic compounds. First, the material properties of such materials and the overall status of precision machining technology are summarized. Subsequently, the cutting performance (material removal mechanism, cutting force, cutting temperature, chip shape and tool wear) of the machinability is mainly analyzed. Simultaneously summarize the surface integrity (surface roughness, surface defects, residual stress, work hardening and microstructure) of the material after processing. Finally, the ultrasonic vibration-assisted machining technology used in Ti-Al intermetallic compounds is prospected to provide a certain theoretical basis and technical support for the processing of such materials.