Abstract: The paper introduces the application status of the Reliability-Centered Maintenance（RCM） technology in Haiyang nuclear power plant, and analyzes the RCM application in the future, including the optimization of equipment reliability classification, development of performance monitoring program and preventive maintenance program, optimization of preventive maintenance program, risk significant components management and optimization of spare parts. The application of RCM can help utility to develop integral equipment maintenance strategy, improve the equipment reliability and availability, and reduce maintenance costs.