Based on the WTO and the Ministry of Health's requirements on measurement of radiation therapy, diagnosis and nuclear medicine, as well as the urgent need for metrological support in the development of radiation medicine, our team carried out metrological basic research and application in the above fields.The goal is to establish the technical capabilities of standards and dissemination, improve the radiation medicine measurement system, strengthen the cooperation with clinical hospitals, universities, nuclear medicine quality control center etc., promote the application of measurement technology, and provide radiation medicine safety services for the public.The team has been engaged in measurement work in this field for a long time with a solid foundation, and has undertaken a number of national projects.