The agricultural application perspect of (γ-PGA) (γ-polyglutamate),which was newly developed by the college of life science and pharmacy of Nanjing university of technology,is studied in this paper.The results show that the water absorption of (γ-PGA) is as higher as 1108.4 times,which is 2.85 times that of the polyacrylic acid sold in the market.The water absorption of (γ-PGA) in soil is 30~80 times.The water solution of (γ-PGA) has better moisture-holding and releasing abilities,and is more effective in fighting a drought and keeping a full stand of seedings.The seeding experiment was carried out under the condition of different GEP concentrations,the results show that the abilities of the water-absorbing and holding of (γ-PGA) are quite well and the seed dressing with (γ-PGA) is helpful to increase the germination percentage of wheat and corn.Mixing (γ-PGA) with seeds and using water saturated (γ-PGA) as antistaling material,will increase the germination percentage of the seeds and prolonge the freshness-keeping period of cutting flower.The research of the water balance model among plant,soil and (γ-PGA) should be carried out for the further application of (γ-PGA) in the field of agriculture.