Abstract: Storage studies of groundnut (Arachis hypogeae L) in South B Eastern Nigeria were conducted to find out the rate of rot disease and the fungi responsible for the disease. Twenty-five storage locations were investigated. They were seriously infected with rot disease. On isolation on Potalo Dextrose Agar, the injected material yielded three different fungi all of which were Aspergillus flavus link. 60% of the fungi were Aspergillus niger Van Tiegh, 25% Aspergillus versicolor (Vuill) Tirab. While Aspergillus fresen was 15%. The Aspergillus niger Van Tiegh was 5-6 cm with brownish colour at center and whitish at edge. A. versicolor (Vuill) Tirah was 4-5 cm still with brownish colour but shades of white at edge while A. fresen was 3.5-4 cm with light brown at center and whitish at edges.