ABSTRACT
A psychological health investigation was made among 219 undergraduates in Xian Medical University, by five parameters including CMI, EPQ, disposition, SAS, SDS, and etc, It was found that their anxieties and depression are higher-44.29% and 21.00% respectivel, among them there are unstable moods and a tendency towards some nerveous symptoms respectively in 51.24% and 10.5%. Compared with the normal average values from Eysenck's questionnaire of personality, both the average values of introversion and extroversion are higher than the normal values. The comparasion between this paper and the result from the postgraduates in Beijing Medical University showed that anxieties, deprenions and unstable moods in medical undergraduates are remarkably more common than in the postgraduates. Atthe same time, heir causes were discussed in the paper.