Experiment was made to verify the fractrination of organic Phosphorus in paddy soils of southeastern Hubei by Bowman-Cole's method.Results obtained showed that the rates of mineralization of the four organic phosphorus fractions (labile P,moderately labile P,moderately resistant P,highly resistant P) in the soils tended to increase with the enhance of their activity.As a result,the method of organic phosphorus fractionation can be used to monitor soil organic phosphorus availability for plants.