In a 0.66 hm2 experiment field，we had carried out the pigsbiogasgrain（maize）circulation pattern study on the resource utilization of corn straw，pig，s manure and urine with biogas as circulation link for seven years，and benefits of pattern were evaluated.Results showed that after cycling and transforming of pigsbiogas grain for seven years，the contents of soil organic matter，alkali solution nitrogen，available phosphorus，rapidlyavailable potassium were increased by 115.69%，173.97%，151.87% and 117.19% respectively；soil aggregate，field capacity and total porosity were increased by 88.06%，60.29% and 50.58% respectively，bulk density were decreased by 19.88%；the total numbers of soil bacteria，fungi，actinomycetes and microorganisms were increased by 93.97%，338.10%，71.71% and 93.96% respectively；comprehensive economic benefit was increased by an average of 42 473.1 yuan per hectare land per year.