Overseas Chinese is one of the important topics in the field of social science research. The Overseas Chinese have brought the culture of their ancestral homeland to all over the world, and in the process of clashing and integrating with other ethnic cultures, they have generated distinctive Chinese cultures in different countries. However, it is not clear in many studies whether the Overseas Chinese identify with Chinese culture or overseas Chinese culture. This article helps to examine the concepts of "Culture of China", "Chinese culture" and "Overseas Chinese culture". Besides, this study also reviews the previous studies on the Chinese cultural identity of overseas Chinese and provides some references for similar research in the future.