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The nature of some symptoms are very complicated and most of the time it is hard to determine whether these symptoms are dissociative or psychotic. The psychotic symptoms, which were described by Diagnostic Statistical Manual (DSM) may be seen also in dissociative disorders. In a study dissociative identity disorder (DID) patients had higher positive symptoms scores on the positive and negative symptoms scale (PANSS) compared to schizophrenia. There are evidences that childhood traumas (CTs), especially physical and sexual abuse are increasing the dissociative and psychotic symptoms which seen in schizophrenic patients. CTs are also a well-known, common etiologic factor for dissociative disorders. Hallucinations are one of the most common psychotic symptoms in schizophrenia and dissociative disorder. Phenomenological and cognitive differences of hallucinations in dissociative disorders and schizophrenia are still not clearly putted forth. There were different criteria’s accepted for specifying, which types of hallucinations should be the focus of clinicians effort. There have been some phenomenological specialties offered for distinguishing them properly. Metacognitive beliefs, thought suppression, belief about hallucinations are concepts, which have shown associated with hallucinations. Similarly, insight and its cognitive components are studied in schizophrenia and those studies revealed its associations with hallucinations. This debate has aimed to review the phenomenological features of psychotic symptoms which seen both in schizophrenia and dissociative disorders, and has focused on a hypothetic cognitive model, which has been suggested for auditory hallucinations.