This article explores the influence of sensation seeking motivation on juvenile delinquency of male-adolescents. A preliminary survey was perfomed to construct sensation seeking scale which fits to korean culture. According to the results of principal axis factoring, we designed 18-items short form of korean sensation seeking scale(KSSS). In the main research, subjects were 255 male high-school students whose average age was 16.6. All subjects answerd to KSSS and delinquency scale. Among the subscales of KSSS, experience seeking, disinhibition, and boredom susceptibility, except thrill and adventure seeking behavior, correlated with all kinds of delinquency. The results of multiple regression show that these 3 subscale of KSSS account for the juvenile delinquency significantly. In that point, the importance of sensation seeking behavior as a construct which influence juvenile delinquency was discussed.