Abstract: This research adopted personality measuring instrument designed and made by the researchers themselves which were approved by experts.The researchers used the instruments to measure 139 Jinuo students and 112 local Han students.The result showed that the personality of Jinuo students had a number of peculiar characteristics. However, there were more common characteristics in Han and Jinuo students. There was more generality than discrepancy. Both of the nationality students developed steadily in their personality,accompanying some particular character development, whose degree, content,tendency and progress were different. There were more differences between the characters in the two nationalities in Grade One;however,when coming to Grade Two, there was a reduction in discrepancy, the reasons of which are that Han students were willing to be friends with Jinuos, the two nationality students drew closer to each other, Now more Jinuo students are ready to be friends with Han students.

Key words: Jinuo Ethnic Group, middle school students, personality, trait