This chapter provides an overview of the positive youth development (PYD) approach, its impact on youth development, and its implementation in studies and programs across China. Manifesting through various models, such as the “40 Developmental Assets,” “5Cs and 6Cs Models,” “15 PYD Constructs,” “Social-Emotional Learning (SEL) Model,” and “the ‘Being’ perspective,” the PYD approach views adolescents as productive individuals and valuable societal assets, emphasizing their potential and strengths rather than merely focusing on their problems. Research indicates that PYD programs enhance developmental assets, foster positive outcomes, reduce problematic behaviors, and improve adolescent well-being, supported by empirical evidence from studies throughout China. The chapter also discusses future research directions, including the application of meta-analytic designs for evaluation studies. Additionally, it highlights Project P.A.T.H.S., a notable PYD program for secondary school students, detailing its success in promoting PYD attributes and reducing negative developmental outcomes through curriculum development, training for teachers and youth practitioners, and comprehensive program implementation and evaluation. Further research is necessary to explore the impact of PYD programs under different cultural contexts and their long-term effectiveness. Collaborative efforts among researchers, practitioners, educators, organizations, communities, youth workers, parents, and youths are recommended to enhance PYD intervention programs, policies, and practices.