This study conducted an analysis of differences by college major in college student's Department Satisfaction(DS), Career Maturity(CM), and Career Stress(CS) and to define the correlation among the three factors above. The participants in the study were 693 third-year university students in Chun-cheon (326 are males and 367 are females). The questionnaire was Major Department Satisfaction Questionnaire which designed by Ha Hye-sook(2000). The test material was Career Maturity Questionnaire which was translated CMI into Korean by Kim Hyun-ok(1989) and revised by Kim Bong-Hwan(1997). And the questionnaire were made by reference of Seo Yu-jin(2007)'s Career Stress Questionnaire with Kim Young-mi(1991)'s ‘The Questionnaire for the stress of the University students’ and Hwang Seongwon( 1998)'s ‘Test of the University Students Career Stress’. F-test was used for the analysis of three factors, and product moment correlation of Pearson's was used for define the correlation of the factors. The result of the research shows that there is a obvious difference among that three factors. There is meaningful positive correlation between total DS and total CM. There is meaningful negative correlation between total DS and total CS, and between DS subclasses and CS subclasses. With these conclusions, the discussions about the Students Career Teaching and Method, and the need of Career Teaching in college major were implied.