Abstract: Safe decommissioning of nuclear facilities is one of the necessary conditions for the healthy and sustainable development of nuclear power. To ensure the safety of personnel and the environment during decommissioning process of nuclear facilities, it is urgent to conduct research on the safety assessment system for decommissioning of nuclear facilities. China has not yet established a comprehensive safety assessment system for decommissioning of nuclear facilities. Based on current situation, this paper first focuses on the characteristics of safety assessment for decommissioning of nuclear facilities, which make the safety assessment for decommissioning of nuclear facilities significantly different from the safety assessment of nuclear facilities in operation or general industrial facilities. Secondly, this paper summarizes and extracts the general process and evaluation content of safety assessment for nuclear facilities decommissioning. Finally, this paper summarizes the shortcomings and challenges faced by China in the safety assessment of nuclear facility decommissioning, providing reference for the subsequent development of decommissioning safety assessment for nuclear facilities.

Key words: decommissioning of nuclear facilities, decommissioning safety assessment, assessment system