Abstract: Many studies show that national identity changes when people enter another country. It is because they are involved in new social situations. This is a foregone conclusion. What people want to know is what impact national identity and what are the mechanisms that contribute to changing identities. One’s national identity is influenced by many factors. To understand this complex issue, scholars need to investigate the mechanism behind those changes and deconstructing it. The Korean Chinese in South Korea are interviewed in this study. A general analytical framework was designed for this case study. It considers geographical characteristics of social networks as independent variables and the home country identity as the dependent variable. The major objective is to investigate changes in a Chinese identity to a Korean Chinese identity in South Korea. We conclude that the Korean Chinese in South Korea are gradually tightening their economic relationships and ties with China. The networks of their family and kinship has still include both China and South Korea, as they have since the early of 1990’s when the first tide of Chinese entered South Korea. The international influence of China improved when more Korean Chinese began to also enter other countries in the past decades. All of these developments enhance the Chinese identity of the Korean Chinese in South Korea. A geographical perspective aids in analyzing the changing national identity. The identity of the immigration country and emigration country is to be compared in the future.