As a low-carbon, efficient and safe clean energy, nuclear power plays an increasingly important role in the context of “dual carbon”. With the concept of “social governance innovation”, the effectiveness of public communication in the development process of nuclear power projects has become a key factor in the success of the project. Before local government approval phase of new nuclear power projects, there is no set form for carrying out public communication at the regulatory level and the practical operation level, but with the further scarcity of excellent NPP site resources, coupled with the background of tight progress of special public communication, it is necessary to carry out pre-public communication work in this phase. This paper systematically analyzes the challenges of public communication before local government approval phase, and puts forward strategies for public communication in this phase, providing operational guidance for public communication work of new nuclear power projects.