Abstract: Yunnan radioactive waste repository is one of the first batch of urban radioactive waste repositories constructed by the central government. Over the past 34 years of operation, it has collected and stored a total of 3 650 radioactive sources and 12.2 tons of radioactive waste; The security construction of the warehouse area has been continuously upgraded to meet the nuclear safety guidelines “Requirements for the Safety Prevention System of Urban Radioactive Waste Storage”; The radiation environment quality in the warehouse area is good, and all radioactive monitoring indicators of environmental air, water, soil, and ecological environment belong to the regional environmental background level; The promotion activity of nuclear safety culture is rich and diverse, and the emergency prevention of radiation accidents is constantly prepared to continue to ensure the ecological and environmental safety of the province.

Key words: urban radioactive waste repository, construction, maintenance, radiation environments, monitoring and analysis