The purpose of this study was to identify how high school students established zone of acceptable alternatives and occupational aspiration through reasoning between occupational image and self-concept. The population of this study was all students of high schools in korea. With stratified cluster sampling method, 700 high students were drawn from the population. Six hundred ten out of 700 questionnaires were returned(a response rate of 87.5%), of which 437 were used for analysis after data cleaning. The results of this study were as follows:First, high school students didn't have generalized occupational image. They had generalized occupational image only about the stereotyped jobs. Second, the occupational image, zone of acceptable alternatives, and occupation aspiration were different according to the locality type, school type, and gender of the high school students. Third, there were positive relationships between tolerable-effort boundary and perception about grade, desire of success; between tolerable-level boundary and perception about prestige level, expectation of circumferential people; and between tolerable-sextype boundary and perception about sex role. Forth, the occupational aspirations of high school students were located in the zone of acceptable alternatives. Fifth, there were positive relationships between prestige level of occupation aspiration and perception about grade, desire of success, prestige level, and expectation of circumferential people; and between sextype of occupation aspiration and perception about sex role.