Purpose: This study aimed to provide basic data for adolescent drinking prevention through the investigation of drinking status of middle school students. Method: Students from 15 different middle schools located in the S district of Seoul were investigated using a self questionnaire. A total 1,957 students, two classes of 7-8 graders from each school, answered the questionnaire during November 8 to 19, 2002. The tool used for the research was modified version of what Korean Association Against Drug Abuse and Korean Drinking Culture and Alcohol Research have developed and a subscale of POSIT used to identify middle schooler`s problem drinking. The Cronbach`s a of the tool was .87. The data analyzed using Spss Win 10.0. Results: 1. The rate of students who have experienced drinking was 64.1% and 23.1% are still drinking. 3.4% drinks more than 2 times a week. 2. A total 94% replied they have started drinking before 7th grade and 53.9% started during elementary school and 20.7% before elementary school and 19.4% during 7th grade. 3. The rate of middle schooler`s problem drinking measured by a subscale of POSIT was 5.5% among total subjects, and 8.5% among experienced drinkers. Conclusions: To prevent middle schooler`s drinking, a accurate survey of drinking should be carried out repeatedly and relating factors to middle schooler`s drinking be analyzed.