Abstract: A test on applying oyster shell powder on peanut in the paddy field of podzolic sandy soil was carried out.The results showed that,on the basis of the local conventional fertilization,the agronomic and economic characters of the peanut in the treatments of base application of oyster shell powder were better.Among the treatments,the base application of 150kg/667 m²(2250 kg/hm²) oyster shell powder could get the best performance with 264.67 kg/667 m²(3970.05 kg/hm²) yield and 368.4 RMByuan/667 m²(5526 RMByuan/hm²) net income.