“Political culture within the Party” and “socialist culture with Chinese characteristics” are two major propositions put forward by the Communist Party of China in the practice of leading reform and opening up and socialist modernization， which provide a cultural strategic design and path for comprehensively promoting the great project of Party building and the cause of socialism with Chinese characteristics in the new era. Although the main value functions of the political culture within the party and the socialist culture with Chinese characteristics serve the construction of the party and the country respectively， they are two relatively independent cultural forms. However， they are closely related and interconnected， with a high degree of historical and practical internal unity. In terms of generating logic， both are guided by Marxism， based on excellent traditional Chinese culture， and rooted in revolutionary culture； In terms of value logic， both take firm belief in Marxism and the ideals and convictions of socialism and communism as their core content， and both take the core socialist values as their main value orientation. In terms of development logic， the two are integrated and mutually reinforcing， jointly leading and promoting the development process of contemporary Chinese economy and society.