In the present study, we attempted to investigate behavioral inhibition in 2-year-old children and its associations with their school adaptation at 7, 11, and 14 years of age. At 2 years, the child and his/her mother were invited to the laboratory, and the child’s behavioral inhibition was observed in several situations. A series of follow up studies were conducted in this sample when the children were 7, 11and 14 years old. In the follow up studies, we asked teachers to complete measures assessing children’s social and behavioral competence and problems. Regression analyses revealed the following results: (1) Children’s behavior inhibition at 2 years had significant and positive effects on task orientation and peer social skill, and negative effects on learning problem and acting out at 7 years; (2) Inhibition positively predicted victimization and shyness-anxiety at 11 years for boys, but not for girls; and (3) Inhibition had negative effects on acting out and learning problem and positive effects on task orientation at 14 years. These results suggest that inhibition is a significant phenomenon that contributes to the prediction of children’s school adaption.