the "Marxist Philosophy in Textbooks" and the "Marxist philosophy in academia", have caused the "legitimacy crisis" of Marxist philosophical research, challenging the fundamental nature and spirit of Marxist philosophy and distorting its relation to the reality.

I have pointed out that the absence of general will resulted in the legitimacy crisis of modern state.

From the angle of politics development, it can be known that any politics system will face the legitimacy crisis to different degrees in the process of the social variance.

By using this theory Habermas unveiled the crisis of legitimacy in modern western society, and offered his way out.

The legitimate crisis is a direct identity crisis,identifies as the different contradictions which threaten the integrity of the system,thus cause the danger to the harmony of the society.

This article clarifies the three legitimate crises of China s politics since the founding of People s Republic of China and also analyzes the causes of the crises on the basis of discussing legitimacy and legitimate crisis.

Since the middle term of 1990s,China’s economy has been increasing rapidly on the one hand,but it has been faced with the crisis of legitimacy on the other hand.