Brucellosis is a kind of infection that has been encountered quite often in our country. Neurobrucellosis, which is a rare form of brucellosis, may affect the central and peripheral nervous system and cause serious clinical results. It is a known fact that neurobrucellosis can imitate psychiatric disorders. Psychosis, on the other hand, is a very rare clinical form of neurobrucellosis and there are very few reports of brucellosis due to psychosis in the literature. In our country, where animal husbandry is common and infectious diseases are common, brucellosis should not be ignored in the differential diagnosis of a patient with sudden onset psychotic symptoms. In this case report, a case of neurobrucellosis with psychotic symptoms is discussed in the light of literature.