Super modified starch absorbent resins were synthesized with cassava starch and acrylic acid(AA) as raw material and potassium permanganate as the initiator.The effects of environmental temperature,pH,the electrolyte solution,organic solvents on water absorption were investigated.Meanwhile the reuse capacity of resins was observed.The results showed that the influences of temperature is weak when T < 60℃,and the absorbency is high in the range of pH values of 5～11.The absorption rate decreased significantly with the increase of metal cationic charge and concentration in electrolyte solution and organic solvents concentration,and there is different critical concenstration with organic solvent varies.The water absorption is more than 1 000 g/g after reused four times