Objective: The aim of the present research was to investigate the impact of positive psychology and visualization techniques on the mental health of injured athletes.Method: This study was applied in nature, and in terms of data collection, it was a survey and correlational research. The statistical population included 500 organized athletes from Zanjan County in 2024 across various sports disciplines, all of whom had at least two years of experience. A total of about 200 injured athletes were identified, and based on Cochran's formula, 131 individuals were selected as the sample using cluster random sampling and purposeful selection according to the inclusion criteria for the study. In this research, a researcher-made package based on the Oshea & Moran (2019) training program was used for mental imagery training. The positive psychology training by Susan Quilliam (2003) was also conducted over 12 sessions. The Psychological Needs in Sport Questionnaire by Vallerand et al. (2006) was administered as a pre-test and post-test.Results: The mental health scores of injured athletes across different groups showed significant differences (P=0.01). In the group receiving positive psychology training, the mean difference was 4.20, and the t-value was (3.402) at a significance level of 0.02, indicating a significant positive difference. In the visualization group, the mean difference was 3.99, with a t-value of (2.314) at a significance level of 0.03, demonstrating a positive and significant effect of visualization. In the combined group of positive psychology and visualization, the mean difference was 10.17, with a t-value of (5.724) at a significance level of 0.01, showing the highest increase in mental health scores among injured athletes. However, in the control group, no significant difference was observed with a significance level of 0.51 (P>0.05).Conclusions: Athletes face psychological issues due to the absence from competitions and decreased self-confidence after injuries. In this study, positive psychology techniques and visualization had positive effects on the mental health of these athletes and can be used as a practical approach in sports teams for injured players. The educational-psychological intervention, including training coping skills and stress management, helps athletes better cope with the psychological challenges arising from injuries and achieve better conditions.