Research has consistently supported the significance of parental attachment in behavioral development during adolescence. Based on the attachment theory and the engine of well-being model, the current study examined the mediating effect of hope in the relation between parental attachment and social problem-solving skills in Chinese early adolescents (N = 745, 6th to 8th grade, age range 11 to 15 years, mean = 12.76, SD = 0.74). Data were collected across two time points, with six months between each time. After confirming the measurement model, the structural equation modeling analysis results showed that hope fully mediated the relation between maternal and paternal attachment, respectively, and social problem-solving skills. The findings are consistent with previous research conducted in the United States showing the mediating role of hope in the relation between family resources and adolescents' positive goal-directed behavior. These findings also support the application of the attachment theory and the engine of well-being model in Chinese culture and possibly Eastern culture in general. Implications for school psychologists and other mental health professionals to help parents understand how they influence adolescents' social problem-solving skills (via hope), especially in the Eastern cultural context, are discussed.