Abstract: Three subystems-animal breeding,cropping and food processing have been integrated in one experimental farm in Shimen, Jinhua.Based on cropping the farm takes the animal breeding as the key section,and biogas plays a role as links in the whole farm system. Thus forming a complex farm structure char-acterized by energy and material recycling。Since the establish-ment of the farm im 1986,it has brought about high economic and ecological benefits,that provides an ecological agriculture model to the low hill red-soil areans of Southern China.