As the first emperor of the Yuan Dynasty, Kublai Khan initially adopted the political system of Han people. First, he set up the department 'Zhongshu Sheng' to administrate the national affairs; the department 'Shumi Yuan' was established to govern the national military affairs; the ministry 'Yushi Tai' functioned as the supervision department. Besides, a new administrative unit called 'Xingsheng' (equal to current provinces of China). This was under the direct charge of the central court created by Kublai Khan. Meanwhile, a new efficient information transferring system called the 'Yizhan' System was firstly set up in his reign to strengthen the imperial ruling. In this way, a centralized political system was founded, guaranteeing the stability of the whole nation.