Interactive doll is a new toy design that is specially designed for children to improve communication abilities, which are their social behavior, language. By connecting each part between female doll and male doll like head, mouth, hands stomach and legs, their doll speak various words based on social reaction in daily life. Also, these dolls can change their character. Hitting head makes them bully, or if they kiss a lot, they become more cheerful person. Their whole processes reflect our social life and are good to know for children in early ages.