Abstract: Aflatoxin contaminated groundnut cake ( GNC) was treated with sodium hypochlorite for detoxification.The treatment was at 0.25%,0.50% and 1.0% levels and samples stored at 25% moisture level and ambient temperature in sealed polyethylene bags. The durations of treatment was 24, 48 and 72 hours.The present experiment showed that sodium hypochlorite is an effective reagents for destroying aflatoxin in GNC. Both the level of chemical and treatment time were not important factors for detoxification in this trial and there were no significant difference between the different level of chemical and duration of treatment ( P >0.05). The treatment with 0.25 % sodium hypochlorite for 24,48 and 72 hours could reduce aflatoxin by 93.32%, 95.51% and 96.27% respectively.The destruction of aflatoxin in GNC was 94.82%, 93.82% and 96.65% for 1.00% of sodium hypochlorite treatment for the three treatment duration respectively.