Cognitive models of obsessive-compulsive disorder is an individual who evaluate intrusive thoughts in a disturb way due to selective attention will create excessive response to this thought which will create the disorder. All obsessive-compulsive disorder patients have their unique belief process of those intrusive thoughts which cause the development of the disorder. (Solem & Fisher, 2009). Understanding and treating OCD from a metacognitive perspective has the potential to increase the effectiveness of this chronic disorder. (Wells & Fisher, 1994). Also tDCS is useful to decrease symptoms especially for patients with treatment-resistant OCD (Volpato et al., 2013; Narayanaswamy et al., 2015; Mondino et al., 2015). Therefore combining two non-invasive
