Abstract: Accommodation zone is an important structural deformation in rift basins,and the eastern part of Africa is the most desirable area of study.The geological character of accommodation zone in the Lake Albert Basin and its importance in controlling hydrocarbon accumulation has been deeply analyzed based on regional tectonic,sedimentary and reservoir formation studies.As for accommodation structural system in the extension area,traps(mainly faulted block traps)are more developed.Larger drainage systems are able to enter and provide a large input of clastic material into rift basins along the relay ramp,which is a kind of accommodation zone.In addition to this,accommodation zones often connect with hydrocarbon generation kitchens.All this demonstrates that accommodation zones have very strong controlling effects on hydrocarbon accumulation in rift basins.