Abstract: Children are the users and future masters of cities. They actively participate in the process of urban construction, which has a positive role in promoting children’s physical development, mental health, and emotional cognition. It also makes urban space more inclusive, fair and sustainable. Based on the WoS and CNKI, adopting research integration method, systematic analyze the development process and research of urban environmental planning and design at home and abroad, covering policies and regulations, theoretical research and representative practical projects, involving children's participation, participation methods, evaluation and other content. It also proposes development strategies suitable for children's participatory design in China from the establishment of systems, organizational structures, and localization practices, providing a new perspective for planning and construction of child-friendly cities of China.