RÉSUMÉ
Abstract@#School-based sexuality education plays a vital role in the healthy development of children and adolescents. At present, China has issued a series of laws, regulations and policy documents to support school-based sexuality education, but the development of school-based sexuality education in China still faces challenges such as negative attittude, lack of class hours, professional teachers, teaching materials, as well as effect evaluation and sensitive nature. Experience in school-based education in many countries demonstrated that the research and development of localized comprehensive sexuality education guidance on school-based education is effective in promoting school-based sexuality education. In 2018, with the support of UNESCO and UNFPA, Lab of Comprehensive Sexuality Education for Children of Beijing Normal University, inititated the "Research and Development of Comprehensive Sexuality Education Guidance" project, aiming to develop a local "Comprehensive Sexuality Education Guidance",and to support and promote the school-based sexuality education in China.