The research on the risk assessment technology of the ship's integrated electric propulsion system is to more accurately study the risk performance of the ship's integrated electric propulsion system, analyze the safety situation and various risks when the system operates under different working conditions, and thus It lays a foundation for improving the safety performance of the ship's integrated electric propulsion system. Therefore, the risk assessment result of the ship's integrated electric propulsion system is the theoretical basis for people to correctly analyze and improve the safety performance of the real ship, and to ensure the reliability and feasibility of the ship's integrated electric propulsion system operation plan. The most important thing is that the obtained systematic risk assessment results directly affect a series of decision-making analysis after the occurrence of various risks, and the formation of the best combination of risk countermeasures, which is very important to reduce the equipment and personnel caused by the occurrence of risks.