Abstract: During emergency response to a nuclear accident in a nuclear power plant, the timeliness and accuracy of nuclear emergency notification reports and the reliability of communication methods are crucial for nuclear emergency organizations at all tiers to implement the nuclear emergency work policy of "unified command and vigorous coordination". High-quality development of the nuclear power industry has put forward higher requirements for work related to nuclear emergency notifications and reports. The rapid upgrade of emergency communication technology has provided technical support for the safe, reliable and timely completion of nuclear emergency notifications and reports. On the basis of sorting out current relevant regulations, guidelines, and standards, and by conducting surveys on domestic representative nuclear power plants, focucing at the common and difficult issues existing in the industry, suggestions for optimization and improvement in terms of diversification of communication means were put forward, from hierarchical management of emergency communication system equipment, standardization of nuclear emergency notification reports, and rapid data acquisition. These suggestions could lay a more solid foundation for ensuring the effective operation of the three-tier nuclear emergency management system, controlling and mitigating the consequences of nuclear accidents.

Key words: nuclear emergency, notification and reporting, emergency communications, optimization and improvement