Objectives : The present study investigated the integrative relationships between Sasang typology, Holland's vocational typology, and Myers-Briggs type. Methods : The sample was composed of 83 sophomores at the College of Oriental Medicine, Daegu Hanny University (56 men, 27 women; ages 19 to 39, mean age ${\pm}$S. D. = 24.38 ${\pm}$ 5.28) and was carried out with the QSCC II, Holland inventory, and MBTI. SPSS 12.0 was employed for statistical analyses. Results : The Sasang types of the subjects were as followed: 21 Soyangin (10 men, 11 women) (25.3%), 20 Taeumin (18 men, 2 women) (24.1%), and 42 Soeumin (28 men, 14 women) (50.6%). There were no significant differences in the mean scores of Realistic, Investigative, Artistic, Social, Enterprising, or Conventional scale between the 3 Sasang types, but in the mean scores of Realistic, Investigative, and Artistic scale between the 4 MBTI combinations (Sensing-Thinking, Sensing-Feeling, Intuition-Thinking, and Intuition-Feeling type): F (3, 73) = 3.11, p < .05 in Realistic scale, F (2, 73) = 3.70, p < .05 in Investigative scale, and F (2, 73) = 5.60, p < .01 in Artistic scale. Conclusions : The present study discovered that the first preference for vocational aptitude of undergraduate students at the College of Oriental Medicinewas Investigative and the second preference was Artistic, which fitted Holland's vocational codes as Investigative/Artistic or Investigative/Social scale. The personality traits underlying Sasang typology play an important factor in making career decisions.