This study aims to examine what influence a career exploration group counselling program has on career decision-making self-efficacy and career maturity of female college students. As a result of the study, it was discovered that the career exploration group counselling program had statistically significant influence on goal choice, job information and future plan which are sub-variables of career decision-making self-efficacy while it had no significant influence on problem solving. Also the program had a statistically significant influence on decision, independency, and involvement which are sub-variables of career maturity while it had no significant influence on compromise. Such results show that the career exploration group counselling program had a significant influence on career decision-making self-efficacy and career maturity of the subjects. Therefore, it is suggested that the career exploration group counselling program should be properly developed and provided so that students can choose career which fit for their aptitude and ability. Further, courses for career exploration group counselling program should be provided at universities to help them with career.