The nano mineral based soil conditioner was applied to the cultivation of rice in the cadmium polluted farmland.The application of the conditioner had no significant effect on rice yield,but significantly decreased the cadmium content in rice and also reduced the available cadmium content of soil effectively.When applying the soil conditioner at 1 500~4 500 kg/hm2,the available cadmium content of soil decreased by 25.00%~35.71%,the cadmium content of rice decreased by 20.31%~50.00%.The effect of cadmium reduction became better with the increase of the amount of conditioner.At the same time,the mechanism of reducing cadmium was discussed,and the economic benefit of the material application was briefly analyzed.