Abstract:Child Friendly Cities was formally proposed by UNICEF in the 1990s. It provides a new direction for the construction of urban space to protect children’s rights and optimize children’s growth environment, which is of great practical significance for urban construction in various countries. For this reason, this paper summarizes and discusses the background,development process and relevant policies of Child Friendly Cities, collects the research on Child Friendly Cities at home and abroad in recent years through Elsevier, Web of Science and CNKI database, and summarizes the research results. It can be found that China is in the exploration stage in theory research and practice planning. In the future research process, children’s needs, influencing factors of children’s outdoor activities, children’s participation and evaluation system of Child Friendly Cities need to be considered deeply.