Abstract: The lexical classification task, sociogram task and loyalty-nepotism task were used to compare the cultural orientation of middle school students from different ethnic groups (Dong and Han people in the Dong area and Oroqen and Han in the Oroqen area) in two minority-populated areas. Research One compared the cultural orientation of middle school students of Dong nationality and Oroqen nationality. Research Two investigated the cultural orientation of middle school students of Han nationality in Dong regions and Oroqen regions. The results showed that the students of Oroqen and Han nationalities in the Oroqen area are more individualistic, whereas the students of Dong and Han nationalities in the Dong area are more collectivistic, indicating that ecological environment and humanistic environment are important factors affecting cultural orientation.