Abstract: Post-traumatic stress disorder (PTSD) can lead to impaired functions such as attention, memory, and executive function, and trigger abnormal brain activity as well as disrupted functional connectivity between brain regions. Although existing drug treatments and psychological interventions have certain therapeutic effects, there are still issues such as drug side effects and delayed onset of action. Therefore, the integration of non-invasive neuromodulation techniques into treatment regimens is warranted. Non-invasive neuromodulation techniques are a new type of treatment technique with high safety, good efficacy, and few side effects. It has shown great potential for application in the treatment of PTSD. This article systematically reviews the applications of various noninvasive neuromodulation techniques in PTSD treatment, aiming to offer valuable insights for future clinical applications and research.