Objectives : The study aims to verify the relationship between personality type and sense of vocation of the clinical dental hygienist. Methods : The study data was collected from 221 dental hygienists working in the City of Changwon(unified), Busan Gyeongsangnam-do. Data analysis was conducted using IBM SPSS Statistics 19.0 program. Results : The relationship between the general characteristics of the study population and a sense of vocation was higher for the dental hygienists with a higher level of education attainment, higher monthly salary, higher job satisfaction level, extroverted personality, and the dental hygienists in a low neurotic group(p<0.001). According to the correlation results among job satisfaction, personality type and the sense of vocation, a sense of vocation and job satisfaction have a positive correlation while the sense of vocation and neurotic tendency have a negative correlation(p<0.01). The results of logistic-regression analysis on the factors influencing the sense of vocation are as follows: education attainment(p<0.001), salary(p<0.05), extroversion(p<0.001) and neurotic tendency(p<0.05). Conclusions : Nature of consciousness, depending on the type of professional vocation was to determine the difference.