Abstract:The main machining methods of ultra-fine grained cemented carbide, including traditional grinding, electrolytic in-process dressing grinding, electrical discharge machining, ultrasonic vibration assisted machining and laser heating assisted machining were introduced. And the machining mechanism and machining properties of ultra-fine grained cemented carbide were reviewed. The further researches of high efficiency and precision machining of ultra-fine cemented carbide were also prospected.