The purpose of this study is to investigate how supervisor s support and countertransference management ability affect counselor burnout, and to verify whether the effect of supervisor s support on counselor burnout is controlled by countertransference management ability. For this, a questionnaire survey was conducted on 241 counselors nationwide about supervisor s support, counselor burnout, and countertransference management. The main results revealed through this study are summarized as follows. First, the supervisor s support and counselor burnout were negatively correlated. Also countertransference management ability and counselor burnout have a negative correlation. And supervisor s support and countertransference management ability have a static correlation. Second, as a result of the hierarchical regression analysis, the interaction effect of the supervisor s support and countertransference management ability for counselor burnout was significant. Thus, it was verify that the countertransference management ability controls the relationship between supervisor support and counselor burnout. Based on these results, the meaning, of this study suggestions and implications for subseguent research were discussed.