Abstract:Being quite eloquent is the main style Of Mencius, in Warring States period, debate was popular and Mencius became outstanding because of his eloquence. People always attributed the eloquence of Mencius to the fighting atmosphere of warring States period but ignored the influence of Jixia Institute, as a cultural center, on Mencius. The cultural center position of Jixia Institute satisfied the demand of Mencius with pursuit of debate, the popular discussion atmosphere of Jixia Institute facilitated Mencius to adopt the debate, and Jixia Institute's debate style of dominating the opponents influenced the debate style of Mencius.