In order to carry out hierarchical management and control of the risks of chemical enterprises , the analytic hierar-chy process was used to construct the evaluation indicators of the chemical enterprise risk management and control system.The evaluation system indicators included 6 second-level index factors and 28 third-level index factors such as risk analy-sis and classification , hidden danger investigation and management ,management level ,guarantee measure , emergency man-agement, occupational health whose weights were calculated respectively with MATLAB.Four evaluation grades were deter-mined using fuzry comprehensive evaluation method , and risk hierarchical management and control grades were obtainedaccording to the principle of membership degree.AHP-fuzny comprehensive evaluation method was adopted to grade therisk of a sample chemical enterprise and got the overall score of the chemical enterprise 's risk management and control.