This study takes Shanghai, China as a case study to study the needs of adolescents from divorced single parent families. The research method adopts the qualitative research approach of combining post positivism paradigm with constructivism paradigm. The data mainly come from in-depth interviews with 15 cases. This study takes the social service perspective of complex interaction between problems / problems and resources in need theory to explore the need to understand of adolescents in the context of parents' divorce due to the relationship between problems and the resources needed to solve problems.