Abstract: Abstact： Oil-tea Camellia cakes are main by-products after extracting oil, enhancing its utilization is a effective way to improve the overall economic benefits of Oil-tea Camellia. Through the analysis of living habits and harmful of oncomelania snails, types and using dose of drugs and mechanism of killing-oncomelania snails , advantage of components,resources status, price about Oil-tea Camellia as the plant drugs of killing-oncomelania snails is presented pertinently.