The purpose of this study was to examine the effects of a staff training program based on CBT to evaluate the burnout of nurse mentors. The findings demonstrated that the knowledge of CBT, which is the primary outcome measure, significantly improved. Specifically, significant improvement was observed in “partial focusing;' “overestimation/ underestimation, extreme generalization, listening, and “brain storming' As secondary outcome measures burnout subscales such as “emotional exhaustion" and “depersonalization" decreased, whereas the sense  of　personal accomplishment" improved. Communication skills such as “deciphering ability" and “expressivity"　on the communication scale improved. These results demonstrated that the implementation of CBT for nurse mentors was effective in not only reducing burnout, but also in improving communication skills.