The culture in the context of mainstream culture and non-mainstream culture is not generally signified，but specifically signified in regards to the cultures in different social and cultural systems and the culture realized by systematic values. Comparing with non-mainstream cultures，there are three modes for mainstream culture：unity，superiority and mutual accommodation. The mainstream culture construction has met some difficulties after the founding of PRC；however，we have prepared to absorb other cultures after the reform and opening up policies. At present，we have to make strategic amendments while we construct our mainstream cultures with Chinese characteristics.