Taking the Indonesian and Vietnamese returned overseas Chinese in Ganzhuang and Honghe Overseas Chinese Farms in the Red River Basin as the research objects, field investigations and literature review are used to describe the special development history of the special groups of returned overseas Chinese in the Red River Basin from their hometowns to others hometown, from others hometown to their hometown and from their hometown to others hometown, and then to explore the theoretical logic behind its development history, to write a group ethnography for the special group of overseas Chinese returning from the Red River Basin.