Incubation and pot experiments were carried out to study the effect of organic manure on the amelioration of Cd-polluted soil. The results showed that application of organic manure could significantly reduce the content of chemically available Cd in soil. Pig manure was more effective than straw. Application of organic manure could accelerate the transformation of exchangeable Cd into WBO and OxMn. There were positive cornelations between the coutents of exchangeable Cd and WBO and those of chemically available Cd and Cd taken up by rice.