Abstract: Based on the research progress of children and adolescents' active play abroad with literature review, systematic search was conducted by sorting out its regional distribution, measurement and statistics, factors affecting participation. Results indicate that the UK has the most research on children and adolescents' active play in the world, with survey methods (questionnaire, interview, self-report) and test as commonly used methods. Their research mainly focuses on such four aspects as obesity relationship, sedentary behavior, venues and facilities and influencing factors (perception of sports environment, parents' education level, etc.). It is suggested in China that the health benefits of active play should be paid more attention based on the report of physical activities of children and adolescents, the integration of active play research methods and the use of objective testing methods be advocated, and the practice of multi-subject intervention in family, school and community be explored.