Coccidiosis is an important diseases with economic impact to the small ruminants in the world, the main problem occurs in the young's animals. Species of Eimeria including Eimeria ovinoidalis, Eimeria ahsata and Eimeria bakuensis in sheep, and Eimeria arloingi, Eimeria ninakohlyaki movae and. Eimeria christenseni in goats. Clinical coccidiosis occurs mainly in the age 4-6 months, the main symptom is dehydration, as result of diarrhea, abdominal pain and weight loss, listlessness. Degree the tissue effect depend on the infection dose of oocysts, stress, species of Eimeria and factors related to the host such as age, genetic susceptibility and physical condition and degree of immune status of host, the most common gross lesions are thick in wall of the intestin and nodules formation. Therefore the aims of the review was to show the Eimeria species in sheep and goats and demonstrated history, classification, pathogenesis, life cycle, Epidemiology of parasite, clinical signs, diagnosis and treatment of coccidiosis.