The Nile lechwe is restricting to very limited areas in the wetlands of Republic of South Sudan and along the flood plains or Alewero swamp of Gambella National Park. The objective of this study is to review the literatures that are related to the current status of Nile lechwe in Gambella National Park. The results of this review both for wet and dry seasons indicated that the Nile lechwe is non-migratory species of Gambella National Park. Its relevance habitat type in Gambella National Park is Alewero swamp and Sudd of Nile in South Sudan. Its home range in Gambella National Park is estimated to be 49km2.