Abstract: The rheological properities of blend solution from cellulose xanthate solution w ith chitin xanthate are invesgated,i.e.the blend ration,concentration and temper at ure of the solution on non-Newtonian Index,Structural Viscosity Index and Zero Shearing Viscosity.Chitin xanthate,cellulose xanthate and their blend solution b elong to non-Newtonian fluid,where non-Newtonian Index increases and structure viscosity decreases with increasing solution temperature.Increasing solution te mperature aids the improvement of its fluidity.The favorable temperature range v aries with blend ratio.