In this experiment, characteristics of phosphorus fixation and release were studied with added different concentrations of P (water soil is 20 1) and by sequential extraction.The results showed that, fixing P capacity of red soil is higher than that of fluvo aquic soil, and fixing P capacity of paddy soil is lowest among three soils.Fixing P capacities of three soils are 2.84 g kg^-1, 2.53 g kg^-1 and 2.08 g kg^-1 soil under treatment of P 2.97 g kg^-1 soil.Ratio of P fixed to P added reduces with increase of added P.In release experiment, capacities of P release reduce with increase of extract ing times, and change insignificantly after 8 times of extraction.In three soils, maximum of P release of paddy soil (124.07 mg kg^-1) is higher than that of red soil (60.46 mg kg^-1) and fluvo aquic soil (19.74 mg kg^-1), the similar results were obtained in total amount of P released.At the beginning of experiment, the ratio of P released to P fixed increases gradually and then reaches equilibrium with increase of extracting times, and that of P released in paddy soil is higher significantly than that of red and fluvo-aquic soils.Ratio of P released to P fixed of soils treated with 1.98 g P kg^-1 soil is higher than that of soils treated with 2.97 g P kg^-1 soil in paddy and fluvo-aquic soils, but the contrary result was obtained in red soil.