The purpose of this study was to verify the mediating effects of career self-efficacy and career maturity in the relationship between employment stress of university students and employment preparation behavior. The data of 770 university and college students were collected for the study. The collected data were analyzed with structural equation modeling. The findings of the study were as follows. First, results showed that employment stress affect employment preparation behavior directly. Second, it was also found that there was mediation effect of career self-efficacy in relationship between employment stress of university students and employment preparation behavior. On the other hand it was found there was no mediation effect of career maturity in relationship between employment stress and employment preparation behavior. Finally, results showed that there was significant double mediation effect of career self-efficacy and career maturity in relationship between employment stress and employment preparation behavior. Based on what has been learned through the analyses, this study proposed advices for succeeding studies in career consulting and career guidance of university students.