Abstract: As a profound social revolution,big data is bringing about tremendous changes with its prominent features of correlation and sophistication,mass information and diversified ways of exchange.It replaces causality,weakens accuracy,objectivity and the oneness of truth,reshaping people's cognitive and interaction patterns and breaking the consensus on mainstream ideologies.Not only that,the application of big data promotes the openness of the Internet and the development of all kinds of we-media,and provides more space for the development and competition of multi-ideological trends,multi-cultures and multi-ideologies,bringing great challenges to the mainstream ideology and its security in our country.In this context,it is urgent for us to seriously study the impact of big data,strengthen ideological concepts,using big data and various emerging media and the Internet to strengthen the construction of mainstream ideology in our country.It is a task that we integrate and guide pluralistic trends of thought,multiculturalism and pluralistic ideologies with Marxist ideology and the socialist core values,enhance the guiding role of mainstream ideologies,and provide a strong ideological basis and political guarantee for the socialist cause in the new era of Xi Jinping.

Key words: age of big data, ideology, ideological discourse right