Abstract: Livestock development of Huanghe-Huaihe-Haihe River Plain has long been lagged behind the crop-planting industry. There is an ever-increasingly broaden gap between livestock industry' s capacity of output and the requirement from national economy and sustainable agriculture as well as rural development in this region. After a systems analysis for on-site researches about the integration of crop &. livestock industry being conducted, combined with proving of constraints and bottleneck, ecology-economics analysis,market projection,as well as regional comparison,a few realistic technical strategies and overall design for the better integration of crop &. livestock industry in this area are presented.