China's Confucius and Greece's Aristotle put forward common Thought of Doctrine of Mean and Mean Thought at similar historic time respectively,which has important influence on world cultural thought de- velopment.In today's construction of well-off all-round society and harmonious society,it is necessary to analyze this excellent achievement in human history in terms of its aspects of the producing cause,connota- tion,content,realizing path and its influence on future generations in order to fully absorb its essence and to make ancient ideas serve present people and to make foreign ideas serve Chinese people.