This research was conducted to find out the classroom behavior of an exceptional hyperactive student, the factors of the learning achievement of an exceptional hyperactive student, and the learning achievement of an exceptional hyperactive student. The subject of this research was Rexa, student at SMP Muhammadiyah Sokaraja. This research was done from 19th November – 26th November 2015. This research used observation, interview, and document to collect the data. The observation‟s result showed that Rexa is a high hyperactive student. The result of interview showed that he is good in learning achievement not only because of external factors such as; extracurricular lessons and good learning facilities, but also of internal factors such as: hobbies, habbits, and personality. Last, the result of document showed that Rexa is good in all lessons.