Presently, the " multiculturalism" has evolved into a political ideology and it has its own point of views in terms of perceiving culture, politics and nation. The dilemma of identity is generated in the relationships between ethnic culture and national culture, ethnic autonomy and national governance, ethnic identity and citizen identity when minorities encounter multiculturalism. How to cope with it? The core idea is to adhere to the principle of "respect for diversity, inclusiveness of difference". This article conducts an in-depth analysis tentatively by taking China as an example. Specifically, the Party and the state need to lay emphasis on issues such as the connotation development of the Chinese culture, the legal practice of rights of autonomy, and the scientific identity construction of citizenship in order to promote Chinese cultural identity, political identity and national identity among all ethnic groups in China and to strengthen social cohesion, national solidarity and state integration through dispelling the predicament of minority identities.