Abstract: Legitimacy,modernity and words power are a great subject that we are facing in the process of constructing the contemporary socialist ideology.The key to safeguarding legitimacy of socialist ideology is to develop China’s economy,enrich the country and strengthen Chinese citizens,improve and perfect our legal system and punish corruption.The main characteristics of modernity turn of socialist ideology are secularization and popularity,signification and rationalization,and plebification.Though validity and modernity are the topic righteousness in the words power of socialist ideology,they have special ways,we must construct the words power of socialist ideology on the basis of grasping the organization rules of the four latitudes of the subject and object,expression manner,concept,and topic choice.

Key words: legitimacy, modernity, words power,socialist ideology, Marxism