The purpose of this thesis is to verify the effects of animal assisted therapy program using therapy dogs for the impulsivity of children with ADHD. The researcher conducted a survey with 3 elementary school students : 11, 12, and 13 years old male students who were diagnosed with ADHD by the ‘Children Psychological Counseling Center’ in P city in Gyeonggi-do. The program was in session, two observers recorded the specific target behaviors and created a graph and chart showing the change in hyperactivity. Due to the small sample size, it might be hard to prove the statistical significance of the results, researcher uesd qualitative data analysis to show the statistical ignificance. Comparing the Before and After test results, it shows that children's impulsivity decreases. In conclusion, animal assisted therapy program using therapy dogs could be used effectively for the therapy of impulsivity of ADHD children.