In this study, a cognitive therapy based guidance program was developed to prevent the recidivism of early-stage juvenile delinquents. The program was designed based on cognitive techniques such as REBT and MBCT. Recidivism-related scales, including measures of negative emotions (depression and anxiety), self-regulation, and mindfulness, were administered before and after implementing the program. The experimental group consisted of 18 students who participated in the police guidance program, while the control group consisted of 15 students who had violated school rules. Initially, descriptive statistics and the pre-test scores were compared to ensure the homogeneity and equal variance of the two groups, and subsequent comparisons were made between the pre-test and post-test results within each group. The study found that the experimental group exhibited decreased levels of depression and anxiety, as well as increased levels of self-regulation and mindfulness. However, no statistically significant effects were observed in the control group. Based on these findings, the study discussed the implications on using guidance programs for recidivism prevention in both judicial and educational institutions.