Abstract:The Environmental Impact Assessment Law of our country stipulated that the project and construction items should be assessed using the method of environmental impact. The planning office becomes the agent of environmental impact assessment is as important as the agent of project construction for the first time. The scope, duty, and the legal responsibility of the agent, which does the assessment using the method of environmental impact, should be standardized and perfected. It will be helpful to implement the work of environmental assessment and make it legal.