The preparation method of superabsorbent resin and the advantages and disadvantages of each method are introduced.The influence of different modified materials on the water absorption and water re-tention performance of the superabsorbent resin was summarized,and the methods of increasing the specif-ic surface area,molecular weight,the number of active groups,appropriate degree of neutralization and crosslinking degree were given to improve the water absorption and water retention ability.Then the appli-cations of superabsorbent resin in environmental management,building materials and agriculture and for-estry are summarized.The further improvement of the properties of the superabsorbent resin is prospected,and the development of low cost and degradable superabsorbent resin is still an urgent problem to be solved.
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