Paliperidone is an atypical antipsychotic drug used to treat schizophrenia. Paliperidone can cause some rare side effects during treatment. Despite many publications of mania and hypomania induced by antipsychotics, mania cases induced by paliperidone are few in the literature. In this case a schizophrenia patient showing symptoms of mania during usage of paliperidone with a dose of 9 mg/day in which the symptoms rapidly disappeared after discontinuation of paliperidone and initiation of aripiprazole was reported. Clinicians should be aware of that Paliperidone treatment may trigger mania symptoms.