Abstract:The security management of electric power enterprises is an extremely complex system engineering, and many factors such as personal, equipment, power grid and information security all determine the safe and stable operation of electric power enterprises. All electric power enterprises have carried out safety risk management and control work, but, they just identify, evaluate and control the single risk, the combine safety risk can not be evaluated. Therefore, focusing on "control capability", a "inherent+control" and "whole process multi objective" dynamic assessment model of safety risk is proposed, which accurately reflect the comprehensive control capability of electric power enterprises in terms of personal, power grid, equipment, information and other aspects of safety risk. It can provide a reference for safety risk prevention and control management of electric power enterprises.