A slow release urea with the function of water absorption and water retention(SAPCU) was prepared by open equipment disc granulator using urea，super absorbent polymer，low grade phosphate rock，weathered coal and bentonite as the main materials The optimum preparation process were obtained The results showed that when using phosphate rock as slow release material，the concentration of the binder was 50%，the dosage of paraffin was 10%,the particle size of super absorbent polymers was 015 mm.The N dissolution rates in water of SAPCU after 24 hours and 168 hours were 436% and 265%，respectively N accumulated leaching rates in soil of SAPCU after 64 days was 4934% Water absorbency of fertilizers was 203% in the tap water The measurement results of soil water retention characteristic curve showed and that SAPCU could decrease water evaporation obviously，and improve effectiveness of soil water release and water retention SAPCU was one of new slow release fertilizers that have the potential of development and application