With the increasing demand on advanced pertomance and more compactness of agricultural machinery including combined harvester, transplanter, atc., serious reverse flexure of belts, large caloric power, and increasing impact of outburst load, the original belts obviously can't satisfy corresponding quality requirements. Technical innovation is made on our agricultural machinery belt. The production technique of raw edge V belts is adopted in agricultural belt. The principal material is made of best compound material with flexing resustabce, heat resustabce, and oil resustance, the material of the framwork is manufactured by special polyester stiff cord, completely meeting the special requirements of agricultural machinery.