No man wants to live in the shadow of another one' power, while on the other hand man never gives up the ambition of influencing and even controlling his fellow countrymen. Therefore, the democracy is invented to alleviate the conflict between the instinct of chasing power and the will of equality, namely, democracy is a system to prevent the emergence of dictatorship and ensure the sharing power of all citizens. However, the principle of democracy abided by in the domestic political life never gets the upper hand in the struggle with hegemony in international relations during long history of human being. To some extent, the contemporary and modern international history is also the history of chasing hegemony by powers.…