Abstract: ObjectiveTo investigate the mental health status and personality characteristics of senior high school students of Zhuang nationality,Yao nationality,Dong nationality and Han nationality in Guangxi Zhuang Autonomous Region.MethodsAtotal of 3 378 senior high school students of different nationalities were administered PHI.ResultsThere was no difference between boy students of Zhuang nationality and Yao nationality in all scores.The SOM,ANX,HYP,UNR scores of Zhuang nationality boy students were higher than Han nationality,lower than Dong nationality.There was no difference between girl students of Zhuang nationality and Dong nationality in all scores.The SOM,AN X,HYP,UNR scores of Zhuang and Dong nationality girl students were higher than Han and Yao nationality.There was no difference in detection rate of T>60 among boys between Zhuang and Yao and Dong nationality,but the detection rate of T>60 in boy of Zhuang and Yao and Dong nationality was higher than Han nationality's detection rate.The detection rate of T>70 among boys of Zhuang and Yao and Dong nationality was higher than Han nationality's detection rate,the detection rate of T>70 among boys of Dong natio nality was higher than Zhuang and Yao and Yao nationality's detection rate.The detection rate of T>60 among girls of Zhuang nationality was higher than Yao and Han nationality's detection rate.There was no difference in detection rate of T>70 among various nationality girls.ConclusionMental health status of senior high school students of Zhuang nationality,Yao nationality,Dong nationality are relatively poor,students have each mental characteristics due to different nationality.