Abstract: The experiment selected Xingren coix seed as experimental material.In order to explore the effect of different storage ways on the moisture content,fatty acid value and peroxide value of coix seed,the coix seed was treated by the temperature gradient,vacuum packing,reducing moisture content and adding antioxidant.The results indicated that reducing moisture content could control the increase of fatty acid value dramatically,however it had little influence on peroxide value.Adding antioxidant increased the content of fatty acids,inhibited the increase of peroxide value in a certain extent,but it had no significant influence on moisture content,TBHQ had the best storage effect especially and could control the peroxide value below 6.3 meq / kg.Low temperature storage and vacuum packing combined with low temperature below 15 ℃ were effective methods,they could control the increase of fatty acid value and peroxide value and keep moisture content stable dramatically and prolong the storage life of coix seed from 2 months to 6 months or more than 6 months.