The purpose of this study was to identify the smoking status and patterns in academic boys` high school students and to aid the effective smoking prevention and cessation management. The subjects of this study wee 1,064 academic boy`s high school students in K city. The data were collected from may 25, 1998 to June 5, 1998, and analysed by descriptive statistics, x^2-test, t-test, ANOVA and Tukey test using a SAS program. The results summarized as follows : 1. The smoking condition in subjects 1) The rate of smoking in total subjects : The rate of smoking in total subjects was 27.1%(1st grade, 19.9%; 2nd grade, 33.8%). 2) The initial smoking condition in smoking subjects : The order in school age of onset of smoking was in middle school(1) and primary school(2). The order in motivation of first smoking was curiosity(1), friends92), being bored(3) and stress(4). The order in company of first smoking was friends(1), none(2) and brothers(3). 3) The current smoking condition in smoking subjects ; The order in cigarettes a day was less than 15 pieces(1), 16-25 pieces(2) and more than 26 pieces. They smoked mostly in the morning at the pleasure resort. Most of subjects reported high degree in smoking need and belonged to the less FTQ score group (FTQ≤6). Smoking was not allowed most of home. The order in motivation of current smoking was stress(1), habit(2), and friends(3). 2. The factors on smoking in subjects 1) The differences between smoking and nonsmoking subjects in the variables of home environment : In the variables of status environment, there was significant difference between smoking and nonsmoking subjects in economic status, but were no differences between smoking and nonsmoking subjects in the type of house, the status of parental existence, marital status and the level of education for parents. In the variables of process environment, there were significant differences between smoking and nonsmoking subjects in the family atmosphere, parental relationship, communication with parents, the attitude to up bringing and smoking family member. 2) The differences between smoking and non smoking subjects in the variables of school environment : In the variables of structure environment, there were significant differences between smoking and nonsmoking subjects in school achievement and attention in class. In the variables of process environment, there were significant differences between smoking and nonsmoking subjects in the school satisfaction, the relationship with peers and teachers, heterosexual and smoking friends. 3. The condition of smoking cessation and smoking cessation education : More smoking subjects quitted for themselves in the past because of the health problems. The 36.4% of total subjects had smoking cessation education. More subjects recommended individual and group counseling as the effective intervention method for smoking cessation education. 4. The knowledge and attitude of smoking subjects : The score of knowledge and attitude about smoking in smoking subjects was significantly lower than that of nonsmoking subjects. The score of knowledge about smoking in educated group(smoking cessation education) was significantly higher than that noneducated group. The score of attitude about smoking in less FTQ score group(FTQ≤6) was higher than that of more FTQ score group(FTQ≤6). The higher the degree of intention was the more the score of knowledge and attitude about smoking was.