Objective To compare the effect of two different fluid infusion models in the non-operative management of spleen rupture .Methods The clinical data of 46 cases of spleen rupture with non-operative management from 1995 to 2001 were analyzed retrospectively. Results In the non-operative management of spleen rupture, patients received continuous but rather slow fluid infusion had higher successful treatment rate(95.24%) and less intra- abdominal bleeding than those in patients received rapid fluid infusion (91.02%) . Conclusions In the non- opeative management of spleen rupture, continuous but rather slow fluid infusion model is superior to traditional rapid fluid infusion.