Based on the sample of 157 pig slaughter and processing enterprises in HUNAN,GUANGXI,SHANGXI,HENAN,this paper studies the factors influencing the choice of models harnessing relationships between food processing enterprises and rural households in order to provide help to the choice of modes harnessing relationships between food processing enterprises and farmers.In this paper,twelve varieties have great influence on the choice of modes harnessing relationships,such as the scale of processing enterprises,the predicts of changes in market demand of enterprises,the production scale,the knowledge...