The adsorption of chlordimeform on red soil and vegetable soil was studied in this work.The results showed that the clay fraction of the soil was principally responsible for the adsorption phenomenon,though oxides in the soil also played a certain role.Soil organic matter also had a high adsorption capacity for this pesticide,but its influence on the adsorption phenomenon was very slight because of its low content in the soil.The different characteristics of chlordimeform adsorption on two studied soils were also discussed in this paper.