Abstract: In order to identify and analyze the key influencing factors for sustainable development of Heilongjiang graphite industry,the elements of a sustainable development system were analyzed from three aspects,the development environment,development force and coordination power.The index system of influencing factor analysis was set up based on the social dimension,the economic dimension and the ecological dimension.DEMATEL model was used to identify the key factors affecting the sustainable development of the graphite industry.The results showed that the key factors included the technological innovation and application ability,management,capital investment,economic benefits,ecological environmental protection and resource development conditions.Suggestions were put forward in order to accelerate sustainable development of Heilongjiang graphite industry through an analysis of the key impacted factors.