This meta-analysis review compared eye movement desensitization and reprocessing and cognitive behavior therapy efficacy in reducing post-traumatic stress disorder (PTSD), anxiety, and depression symptoms. A systematic search for articles published between 2010 and 2020 was conducted using five databases. The RevMan software version 5 was used. Out of 671 studies, 8 fulfilled the inclusion criteria and were included in this meta-analysis. Three studies reported that eye movement desensitization and reprocessing reduced depression symptoms better than cognitive behavior therapy in both children, adolescents, and adults (SDM (95% CI) = -2.43 (-3.93--0.94), p = 0.001). In three other studies, eye movement desensitization and reprocessing were shown to reduce anxiety in children and adolescents better than cognitive behavior therapy (SDM (95% CI) = -3.99 (-5.47--2.52), p < 0.001). In terms of reducing PTSD symptoms, eye movement desensitization and reprocessing and cognitive behavior therapy did not demonstrate any statistically significant differences (SDM (95% CI) = -0.14 (-0.48-0.21), p = 0.44). There was no statistically significant difference at the three-month follow-up and at the six-month follow-up for depression (p = 0.31), anxiety (p = 0.59), and PTSD (p = 0.55). We recommend randomized trials with larger samples and longer follow-up times in the future.