This study was conducted to identify the characteristics of attentional bias of individuals with Sluggish Cognitive Tempo (SCT) and how Attention Bias to Threat (ABT) changes when feedback is provided to them in attention training programs using VR technology. First, a dot probe task was conducted to confirm the degree of emotional bias of the sampled SCT feedback group and SCT no feedback group, and healthy control group. To enhance SCT's ability to disengage, a VR-based feedback attention training program was developed. Finally, a dot probe task was again conducted to measure the change in the emotional bias of individuals with SCT tendency. As a result of examining the emotional bias through the dot probe task before the training program, the SCT groups showed a higher ABT than the healthy control group. As a result of comparing the reaction times of each phase of the attention training program, when VR attention training was performed on SCT, the reaction time of their disengage was significantly reduced under the conditions with feedback. In addition, it was confirmed that the ABT of the SCT group that received feedback from the dot probe task, which was retest after all intervention was completed, was significantly reduced. This study identifies ABT associated with internalizing symptoms of SCT and suggests that ABT can be reduced through attention training.