With the acceleration of urbanization and the decline of natural spaces, the issue of children's disconnection from nature is becoming increasingly pronounced, making nature education an effective means to address this concern. However, current natural education programs rely heavily on commercial institutions and remote natural environments, limiting their audience. This study examines the Aida Community in Jianye District, Nanjing City as its research practice site and employs the PDCA research method's circular driving mechanism to develop a series of natural education courses and gardens through informal practice models within the resource-limited old community space. This approach aims to leverage its unique strengths to facilitate natural education. The study explores a systematic and scientific comprehensive implementation model of children's natural education during the revitalization of old communities from the perspective of informal practice. It offers a new paradigm for promoting natural education at the community level, along with fresh ideas and methods for revitalizing old communities and advancing the popularity of natural education.