Abstract: The Ministry of Ecology and Environment Order No. 8 "Regulations on Safety Permit Procedures for Nuclear Power Plants, Research Reactors and Nuclear Fuel Cycle Facilities" (hereinafter referred to as the "Regulations") has made new clear provisions on the extension of operation licenses for nuclear power plants, research reactors and nuclear fuel cycle facilities. In order to promote the establishment of the aging management standard system of research reactors in China, the development history of life extension review strategy of research reactors in China is analyzed in this paper. Combined with several key issues in the review of the application for extension of the validity period of the operation license of research reactors such as high-flux engineering test reactor, the review strategy is proposed, which gives priority to periodic safety review, focuses on aging management and takes into account the review of technical specifications and differences. The research results provide practical experience and theoretical guidance for the establishment of regulations and standards for research reactor aging management in China.