The new round of curriculum reform in China has promoted the reform of the curriculum management system and established a three‐level curriculum management model of national, local and school. Documents such as "Guidance on Building Expanded Curriculum for Compulsory Education" issued by the Zhejiang Provincial Department of Education have given schools the autonomy to build and manage their curricula. Actively developing and building an expanded curriculum based on vernacular culture has also gradually become a new direction for the development of school characteristics. This study reveals the real situation of vernacular culture in the expanded curriculum of R elementary school by means of a case study, analyzes the development and construction status of vernacular culture into the expanded curriculum of R elementary school, the implementation status and the problems in the implementation process and gives corresponding suggestions.