| After World War II, the world has entered a period of peaceful development, so far, the development of the state of peace has lasted half a century. At this time in half a century, the Western political parties on the basis of their existence on how to consolidate and expand, are faced with a series of new problems, mainly political class as a political and social foundations of the changes caused by changes in the ruling foundation This requires political parties based on the objective of social change can debug path active or passive party development, so as to maintain the vigor and vitality of political parties. In theory, social change is an important factor driving the transformation of the political parties; Judging from the development process of the world’s political parties, the process of political transition in practice, some political success, while others stick to the cause of political parties as rigid, eventually lost regime. So political parties is how to achieve a gradual change in the social environment changes, and further consolidate the regime? Social change is how it affects political evolution, promoting the party to make a change in the value system, functional dimension? These are precisely the thesis to explore and study.In this paper, the World War II political evolution of social change as a research perspective, the use of quantitative analysis and qualitative analysis method, the political evolution of the value dimension, institutional dimension, functional dimensions carding system, and Western political parties to adapt to social change, the problem of restructuring to achieve their own theoretical analysis. This article focuses on the practical role of political parties in contemporary Western countries to play, and how well they respond to citizens’ expectations and how to effectively value exert political functions. Accordance with the "historical process of social change- the impact of social change on party politics- political evolution of structural analysis," the logic of the political transformation of the West after World War II and debugging, consolidation and development, process evolution is analyzed and pointed out that the political parties Evolution is a political party needs to adapt to the inevitable choice of voters, but also to maintain the dynamic stability of the country’s political system the inevitable result. |