Alexithymia, a psychological condition characterized by emotional suppression, is positively correlated with depression and anxiety and can develop into various mental disorders. Although alexithymia affects 10% of the symptomatic population and 25% of psychiatric patients, there has been a paucity of intervention studies. Even though several effective psychological treatments, including cognitive behavioral therapy (CBT), have been tested in recent years, there is a lack of comprehensive reviews on their efficacy. The objectives of this systematic review were to explore and synthesize findings from recent randomized controlled trials (RCTs) about psychological treatments, with the following inclusion criteria: (1) published from 2010 to 2024; (2) full text being available in English; (3) peer-reviewed journals; and (4) baselines and outcomes measured by TAS-20 and raw data were provided. We excluded non-psychological studies and studies involving mindfulness and DBT. We searched electronic databases (PubMed…