This study sought to learn the effects of group art therapy on Internet addiction symptoms and self-control of children addicted to the Internet. The study target first selected children with an average score of more than three hours of Internet addiction examination and an average of more than three hours of Internet use among children in the fourth to sixth grades who were attending H elementary school, and assigned 16 visitors with their parents consent to the test group and control group. From October 2018 to February 2019, the research period included 12 program sessions, total of 90 minutes per week for the experimental groups. The measurement tools used a K scale for Internet addiction diagnosis and a self-control scale. Data analysis was performed using the Mann-Whitnet U test. The motivational group art therapy program was found to have effective, positive effects on Internet addiction symptoms and self-control of children addicted to the Internet. This study is clinically valuable in that it implements a collective art therapy program based on the basic spirit of motivation counseling. Further, it has a key step-by-step procedure on the theory of motivation strengthening counseling. These steps increase motivation of children addicted to the Internet, thus alleviating symptoms of Internet addiction and improving self-control. It is expected that programs for children Internet-addicted will be developed based on this study.