Abstract: According to the characteristics of environmental risk assessment, 10indicators, including hazard of substance, maximum storing capacity and critical mass of main raw material, usage amount of toxic and harmful substance in raw material, are directly cited from the existing technical specifications and standards of environmental risk assessment, such as ‘Technical Guidelines for Environmental Risk Assessment on Projects’, ‘The Standard of Major Hazard Source Identification’. Additionally, combining environmental risk features of industrial park as regional, complex and integrated, 9indicators, including industry category, hazardous waste treatment and disposal method, pollutants emitting way and concentration, were complementally proposed. Total 19indicators above form the environmental risk assessment indicator system of industrial park. There were 600questionnaires issued to management departments, enterprises, and public of nearly 20industrial parks in China, and the hierarchical structure model on environmental risk assessment indicator weights of industrial park is established by Analytic Hierarchy Process (AHP). The result showed that the total interviewees believed that the weight of criterion layer are risk source(0.4663), supervision mechanism (0.3010), and receptor (0.2327) in sequence; that the weight of accumulative environmental risk source indicators (hazardous waste treatment and disposal method (1^st) and research the standard of pollutants emitting concentration (2^nd)) are prior to the indicators of emergency environmental risk source (hazard of substance (4^th), usage amount of toxic and harmful substance in the raw material (9^th), maximum storing capacity and critical mass of main raw material (18^th)); and the weight of usual environmental supervision mechanism, like environmental monitoring (5^th), is also higher than environmental risk coping incident response plan (8^th); For the interviewees the weight of ecological and environmental quality and safety protection is not high like they should be.