The study aims to find out the mediating effects of parental rearing behavior and emotional suppression on the relationship between children's behavioral inhibition and social anxiety. For this, it carried out questionnaire, which was composed of Retrospective Self-Report of Inhibition, Inventory for Parenting Behavior Perceived by Adolescents, Emotional Regulation scale, and Social Anxiety scale targeting to a total of 392 elementary school students in fifth grade and sixth grade. This result of study is follows. Children's behavioral inhibition affects social anxiety and it also affects social anxiety by two paths of parental rearing behavior and emotional suppression. This indicates that children's behavioral inhibition may suppress their emotion and affect negatively parental behavior, and further experience social anxiety. Also, parental rearing behavior is affected equivalently social anxiety with emotional suppression and so this effect shows children's behavioral inhibition affects social anxiety through parental rearing behavior on equal terms with emotional suppression.