Anaplasmosis is most important tick-borne rickettsial diseases of domestic ruminants, with Anaplasma spp. as their respective causal agents. In order to the survey prevalence of anaplasmosis in Korean native goats, we examined the Giemsa`s blood filrms from 552 grazing and 188 nongrazing-goats in Chonbuk area Namwon, Imsil and Sunchang. The conclusive diagnosis was made by observing the characteristic marginal or central bodies in the red blood cells. The infection rate of grazine and nongrazing-goats with Anaplasma spp. was 71.7% and 8.5%, respectively. In order to study about the therapeutic effects of drug for 40 grazing-oats infected with Anaplasma spp. in mountain-area, Berenil(R)(diminazene acetate) was intramuscularly injected (0.5mℓ/10kg B.W.). After 1 month, we don`t detected the parasite in the blood films from 33 goats(82.5%), but no change of significant hematological values(PCV, ESR, WBC, RBC, MCH, MCHC, PLT, MPV, PDW and HB) was observed. These results indicated that the infection rate of Anaplasma spp. was higher on grazing than nongrazing-goats and Berenil(R) as an antianaplasmal drug is recommended.