Abstract: This paper studied the development status and existing problems of electronic personal dosimetry monitoring systems in domestic nuclear power plants. This paper also introduced the optimization practices of the large-scale domestic electronic personal dosimetry monitoring system which was first applied in a nuclear power plant in terms of data interface, electronic personal dosimer distribution and application, access control management for radiation protection control areas, the function of personal dose management software, natural background radiation deduction, and the overall application effect of the system. Suggestions on design improvement of domestic electronic personal dosimetry monitoring systems were put forward.

Key words: nuclear power plant, electronic personal dosimetry monitoring system, management