Abstract: Coal metamorphism in Fushun coal field show the result of magmatic metamorphism with hypalyssal,high temperature and short time.Contact metamorphism is developed very much in the east of west open pit and under Longfeng mine.Contact metamorphic coal didn’t form nature coke,but cindered coal.The zone of coal metamorphism is evident and related to the distribution of diabase which intrusion after main coal formation.