The aim of the present research was to explore the utility of social learning theory-based model and stress-vulnerability model of smoking behaviors. We distributed self-questionnaire to people who visited health promotion center at National Health Corporation Ilsan Hospital. A self-administered questionnaire that included Life Stress Assessment Scale, Symptom Check List-90 Revised(SCL-90-R), coping methods scale and self-efficacy scale, was used with 128 men. Finally Subjects were 70 current smokers, 30 experimenters and 20 never-smokers. The results were as follows: 1. Current smokers and experimenters used significantly less active-cognitive coping method than never-smokers. 2. Current smokers used significantly more avoidance coping method than experimenters and never-smokers. 3. Level of general self-efficacy of current smokers were significantly lower than that of experimenters. 4. Current smokers and experimenters complained significantly more depressed mood than never-smokers. This study explored psychosocial variables which have much relation with smoking and smoking cessation and it suggested that coping methods, self-efficacy and depression were very important factors in effective smoking cessation program.