Materials and Methods: Epidemiological studies on fascioliasis of black Bengal goats were undertaken in such localities under different climatic conditions existing in Sylhet region of five different Upazilla. Goats were divided into young and adult groups. Rectal fecal samples from household and livers from slaughtered goats were collected randomly and examined by direct/and sedimentation techniques and grossly from July 2012 to June 2013.

Results: A total of 1288 rectal fecal samples from household live and 2000 livers from slaughtered goats were examined of which 405 (31.75%) household and 202 (10.10%) slaughtered goats were found positive for Fasciola gigantica. The overall prevalence was 20.93%. It was noticed that prevalence of household was higher than slaughterhouse goat. The overall prevalence of fascioliasis was higher during rainy while lowest during summer season. The highest prevalence was recorded in young's. Moreover, the overall prevalence of fascioliasis in female's goats was more than males.

Conclusions: Fascioliasis is highly prevalent in both household and slaughtered black Bengal goats in Bangladesh. Effective control and the strategic use of anthelmintics is need for the treatment of intensive fascioliasis in black Bengal goats.