This study is to compare health related behaviors among Chinese, Korean Chinese in a Yanbian Province with a population of mainly Korean descendents and Koreans in Kangwon Province, Korea. Cross-sectional surveys were used to identify self-rated health, smoking, alcohol use, exercise and other lifestyle variables. A total of 739 Chinese, 663 Korean Chines, and 639 Koreans were surveyed using self-administered questionnaires. Few Korean Chinese(13.9%) reported they were healthy compared with Chinese(38.7%) and Koreans(36.3%). There was no difference in the prevalence of smoking by ethnic groups. More Koreans(48.5%) and Chinese Koreans(44.5%) reported drinking alcohol compared with Chinese(37.2%)(p < .001). Compared Chinese and Korean Chinese, fewer Koreans reported regular diet, exercise, health screening, and deep sleeping patterns. The lifestyle variables that affect the prevalence of disease were different by ethnic groups. In conclusion, ethnicity was shown to be an independent factor in relation to self-rated health, alcohol use, and other health lifestyle behaviors.