On the basis of observing and evaluating the developing countries,Samuel Huntingdon analyzes a series of variables that influence the stability of politics and indicates a way of realizing the stability of politics.In his point of view,the political order and political stability are the overwhelming factors.There are many factors influencing the stability of developing countries such as modernity,participator of politics and urban-rural disparity.Now there exist dangerous factors that will influence the stability of politics in the transitional period of China.His point of views about party government,participator of politics,harmonious proportion of political system,reform accelerating the development of politics,market economy and citizen society is of theoretical revelation and real significance to constructing the harmonious society of China.