This study aimed to verify the effect of job-oriented career group counseling program on university students career attitude maturity. Selection was made for experimental group 31 students in Yesan-gun who participated in a career group counseling program and for comparative group 31 students in the same grade and same course who did not participate in the program, and an analysis was conducted before and after application of the program. For this study, CAP+ (Career Assistance Program) of the Korea Employment Information Service was reconstituted to satisfy actual situations and requirements of students at the K University. Statistical method used for the analysis calculated the average and a standard deviation of prior test and post test of career attitude maturity and sub-factors and then, an independent sample t-test was performed. Cronbach s Alpha coefficient was used in order to verify this. Following is conclusion drawn from the research result; First, career attitude maturity of students who participated in a career group counseling program was significantly higher than those who did not participate therein. Second, according to investigation of sub-variables influencing on career attitude maturity of students, it was found that such sub-variables as determination, preparedness, independence, finality, and confidence had statistical significance. Following is a suggestion based on the research result; First, it is expected to utilize this study as basic data for career guidance of university students. Second, it is expected for this study to show how respective activities of structured program used in this study make results and then, to be utilized as useful reference data for practical workers and researchers who participate in development and processing of career group counseling program. Third, it is required for subsequent studies to consider through which technique and process group leaders reached the session target per session and which relations they had with effect factors.