A serological study was carried out to estimate the incidence of brucella infection among goats in Assiut Governorate. A total of 1 blood samples were collected from goats from 4 regions through the period from January to December 1995. The samples were examined serologically by Rose Bengal test, Buffered Acidified Plate Test, Tube Agglutination test and Rivanol test. The results of these tests were 0.33 %, 0.33%, 0.15% and 0.3%respectively all over the governorate . Causes of differences between these tests were discussed.