In view of the actual situation of paddy storage loss of farmers, combined with the characteristics of ecological grain storage in northeast area, a color steel plate combined with double-deck dry granary for farmers ration paddy was developed, and the test of the granary was carried out. The results showed that the granary had stable mechanical property, the function of mildewproof, ratproof, moistureproof and natural air drying was remarkable, which could ensure the quality of paddy very well and successfully reduce the loss of the grain for farmers, it provided technical support for farmers to store grain scientifically.