The purpose of this study is reveal the relationship between halitosis and personal profile. The personal characteristics of halitosis patient were studied by symptom checklist-90- revision(SCL-90-R). 135 halitosis patients, 118 TMD patients(control torup 1) and 90 normal persons(control group 2) were selected for this study at the halitosis clinic or the Department of Oral Diagnosis and Oral Medicine, Kyung Hee Dental Hospital. T-scores were analyzed with Korean manual of SCL-90-R. A t-test was used to evaluate the overall group effect and the values were significant at the 0.05 level. The obstained results were as follows : 1. Mean value of T-scores on 9 basic scales of SCL-90-R in all groups(Halitosis patients, TMD patients and normal) was within normal range. 2. When compared with normal group, TamD patients gorup were significantly higher in sclaes of Somatization (p<0.01), Obsession-Compulsion(p<0.05), Depresison(p<0.05), Anxiety(p<0.01), Hostility(p<0.05). 3. When compared with normal group, halitosis patients group were significantly higher in scales of Somatization(p<0.05), Obsessoin-Compulsion(p<0.05), Interpersonal Sensitivity (p<0.05), Psyhcoticism(p<0.05). This data suggests that psychopathologic trends may be associated with halitosis and can be estimated by SCL-90-R questionnaire.