Anovelbeadfromofploymerofhighsorptioncapacityforureawereobtainedbythereactionofglutaricdialdehydewithchitosandispersedinaceticacidsolution.Thesorptioncapacityreached-82.0mg/gsorbentat37℃andpH7.4Theconcentrationofureainthebuffersolutionwas1300mg/l.Thesorptionofureawasrelatedtothedegreeofcrosslinkingofthesorbent,concentrationofurea,ionicstrengthandtemperature.