According to compare the content of phosphorus (P) fraction, P sorption ability of water-sediment in ponds polluted by sewage from a hoggery and a rearing-pond, the influences of sewage from hoggery and fishery on P behavior in water-sediment system were studied. The results indicated that sewage from hoggery and fishery could significantly increase P contents in water, and sewage from hoggery increased more significantly dissolved P in water than fishery. Sewage from hoggery had no significant influence on sediment P concentration and P sorption properties, whereas fishery could significantly increase total inorganic P, Fe bound P (Fe-P) in sediment and maximum P sorption capacity and decrease P absorptive capability of sediment. The P sorption properties of sediment had some relationship with organic matter content in sediment.