Current situation of safety supervision on decommissioning of nuclear power plants in China

China has successfully implemented the decommissioning of 221 plants, micro reactor, small PWR and its auxiliary facilities, and some of the research reactors built in the early stage have also been decommissioned. With the rapid development of nuclear technology, China may face more and more decommissioning activities of nuclear facilities, such as Qinshan Nuclear Power Plant and Daya Bay Nuclear Power Plant. In our current regulatory system of nuclear safety, most of the documents are formulated by referring to the relevant documents of the International Atomic Energy Agency and the U.S. Nuclear Regulatory Commission in combination with domestic practice. This paper mainly investigates the laws and regulations of China's nuclear safety supervision, the main responsibilities of nuclear safety supervision and the main ways of supervision. On this basis, the relevant laws and regulations on the decommissioning safety supervision of nuclear power plants in China are sorted out. It is clear that the institutions of decommissioning safety supervision of nuclear power plants in China mainly include the national nuclear safety administration, the competent departments of nuclear power plants and the operating units of nuclear power plants. The main responsibilities of each department are given, and the main methods applicable to the decommissioning safety supervision of nuclear power plants in China are proposed. The conclusion of this paper belongs to the pre research content of nuclear power plant decommissioning, which can provide reference and basis for the establishment of safety supervision system of nuclear power plant decommissioning in China. (authors)