Abstract: This article applied the systematic analysis and Grey Theory, through the energy flow, the material flow and the capital flow, analysep the function characteristics of the agroecosystem in Heheng Village.The results demonstrated that owing to tse development of ecollogical agriculture, the function of the said agroecosystem has been entered the rational cycles . Total input-output energy ratio has been arrived above 2.5; nurture materials in the soil sub-system are also emerged surplus: N 1.76 kg/mu, P₂O₅ 3.43 kg/mu, K₂O 0.53 kg/mu; the economic benefit of each sub-system is also enhanced, the Grey Model tendency index of the benefits in agriculture, husbandry and fishing are -0.043, -0.214 and -0.251 respectively. According to ana lyses of complicated relation grade, the authors proposed the countermeasures of the agroecosystem in Heheng Village, in addition to basing on the atrengthening and improving the relevant measures of the ecological agriculture, it must be utilized the sun-light and warm resources fully, increased the input of agriculture, improved the quality of labor force, strengthened the obtain and utilization of the organic manure.