It remains challenges to machine advanced aero-engine powder metallurgy turbine disk with structure integration. Low cutting efficiency, poor surface quality and distortion are the major obstacles. Therefore, researchers in the world have proposed many ways to process turbine disk. This paper reviews the structures of powder metallurgy turbine disks and their cutting properties, discussing the key issues in machining along with existing methodology, as well as surface integration after machining. Finally, the article summarizes some of the tool selecting principles available. It is believed combining wire electrical discharge machining (WEDM) and the super-hard abrasive grinding may be an effective and economic process for final finish of powder metallurgy turbine disks.