This paper studied the effects of complex super absorbent polymers on nitrogen and water leaching and agriculture character of the maize through soil column test and pot experiment.The soil column test showed that the volume of eluviations was reduced;the accumulative leaching losses of soil nitrogen,phosphorus and kalium were depressed in treatment with complex super absorbent polymers.The pot experiment showed that the biomass of maize and fertilizer use efficiency was increased visibly in treatment with Complex super absorbent polymers.