<p>Secure attachment priming (SAP) is an effective method for improving mental health. The randomized control trial study examined the effects of workplace SAP on mental health (well-being/depression, anxiety, and perceived stress) in working adults. Indicators of mental health were measured using the World Health Organization’s well-being index, the Generalized anxiety disorder scale, and the Perceived stress scale. Sample 1 was with <i>N</i> = 49 working students, and Sample 2 was with <i>N</i> = 59 working adults. The experimental group received SAP once a week for eight weeks, and the control group received a neutral prime. Key findings from Study 1 showed significant improvements in well-being and reductions in anxiety and perceived stress in the experimental group compared with the control group. Study 2 found no significant differences in anxiety and well-being, but observed a significant reduction in perceived stress after three months. These mixed results suggest the potential effectiveness of SAP in specific contexts, particularly for stress reduction. The findings highlight SAP as a promising, cost-effective, and easy-to-implement workplace mental health intervention that can reduce stress. There is a need for further research into the optimal conditions and mechanisms of SAP to maximize its impact in organizational settings.</p>