Environmental impact assessment is an important part of environmental management, providing important gist for environmental decision-making in China. However, in practice, problems about environmental impact assessment system in extractive industry projects are still existed. In this paper, combined with the characteristics of extractive industry, the analysis was conducted in view of the law, design and environmental impact assessment. We gave some proposals concerning with the problems that have been found, and tried to improve the related system and technology demands from a different perspective. That could make the environmental management work cover all the development process in extractive industry, thus to minimize the environmental impact during the development process. Perfecting environmental impact assessment system of extractive industry has certain reference significance on the improvement of the ecological environment of extractive industry in our country and the construction of legal system of environmental impact assessment.