Imam Ahmad Ibn Hanbal is very famous in traditions collector of Prophet Muhammad, but there are statements related to the Koran issue. The issue states that the Koran is kalamullah or creature. The issue creates a controversy between Imam Ahmad Ibn Hanbal and Muktazilah Madhhab. Therefore, it is very important to be studied about the Koran issue for a right faith which it will guide all Muslim to heaven. It is history study that explains a short biography of Imam Ahmad Ibn Hanbal and his statements and Muktazilah Madhhab related to the Koran issue. Based on the literature study that Imam Ahmad Ibn Hanbal states the Koran is kalamullah following his commitment on the Koran and collection of traditions of Prophet Muhammad, Muktazilah Madhhab states that the Koran is creature