Social information-processing model includes five processing links, and the operation of each link can not be separated from one’s social experiences and internal cognitive activities. During processing, aggressive behavior may happen once information input is wrong or a processing link has cognitive bias. Studies have shown that a stable social information-processing model can predict nearly 80% of the aggressive behavior. Thus, it is an effective attempt and breakthrough to reduce children’s aggressive behavior when we aim against the error and bias appearing in the process link, grant-related social skills to children for early guidance and education.