A reserch scale of 48 items selected from MMPI by McCall et al. was used to compare psychologic aspects of 80 patients with MPDS to control I subjects and control II subjects. For this, study subjects were selected 80 patients of MPDS who visited the Dept. of Dentistry. K.N.U.H., from December in 1982 to September in 1983. Control I subjects were selected 80 outpatients without MPDS who required dental treatment from December in 1982 to September in 1983. And control II subjects were selected 80 persons without MPDS who required no dental treatment and lived in Taegu. The results were as follow : In study subjects,somatic gruop and behavioral group are markedly high than control (I,II)subjects. In somatic group and behavioral group, there was no significant differencd between control I subjects and control II subjects. In somatics group and begavioral group, there was no significant difference between male and female in each subjects: In study subject, general nature somatic category was higher than head, neck, throat and GIT somatic category.(P<0.05) In study subjects, somatic group and behavioral group gradually increased according to increase in number of MPDS symptom.