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The purpose of this study is to provide a basic materials in traffic safety policy making by analysing the effectiveness of traffic safety education. Data of 10,000 drivers's(5,000 drivers were educated and 5,000 were uneducated when they got the driver license, respectively) behavior and traffic accident records for 7 years were collected since 2003. To analysing the effectiveness of traffic safety education, analysis of covariance and logistic regression analysis were conducted. The results are as follows. First, there is effectiveness of traffic safety education in reducing traffic accident. Comparing the adjusted means as a result of covariance analysis, average traffic accidents of the educated drivers are more than those of uneducated. Second, comparing the odds ratio as a result of logistic regression analysis, the probabilities of traffic accident in uneducated drivers are 23.4% higher than those of educated. Third, both the results of covariance analysis and logistic regression are the same. Consequently, traffic safety educations to the first driving license acquisitors should be expanded.