Abstract Based on weakest link hypothesis and longitudinal research design, We explored the applicability of Hopelessness theory in Chinese children using Multilevel Model Analysis, results suggested that :1. The stress predicted children’s depressive symptom, and showed more predict power in elder children; 2. The interaction of weakest link and stress didn’t show statistic significance to predict trajectory of depression , but exhibited the same trend that Hopelessness theory described ; 3. Childhood may be the stage that a person begin and develop his/her attributive style.