High temperature alloy is a complex alloy with excellent high temperature strength, thermal stability and fatigue property, which can work in 600~1000C oxidizing condition. However, it has poor machinability. This article present experimental research of laser assisted cutting of GH4169 high temperature alloy. Comparative experimental research between conventional cutting and laser assisted cutting is done to detect the cutting force variation curve with cutting depth and cutting speed. The experiment results show that cutting forces in laser assisted cutting are evidently reduced by approximately 50%, and tool wear is reduced leading to longer tool life.