Abstract: Studying the pattern of sport and recreational behaviors of the first generation Chinese immigrants in the United States and the role of these activities in their adjustment process when sport environment and social environment has completely changed has significant implements to sport industries and to sport and recreational theories.Resultsfrom questionnaires and ethnographic study showed that 1) Chinese immigrants prefer indoor recreational activities to outdoor activities;their recreational behavior was related to the years of their immigration;they preferred to play with people from the same ethnic group or just do individual activity;significant gender difference was found in social influential agents, family was primary to women and internet and media was primary to men.2) Social and culture norms in the U.S.constraint Chinese immigrants' sport participation and“not familiar with popular sports in the U.S.”was a primary constraint.3) The change of Chinese immigrants' sport and recreational behavior pattern fits the acculturation conceptual models.