通过质押某种商品,获得资金来采购其他商品,从而优化企业商品持有情况.通过对随机需求环境下的企业收益进行分析,构建多品种的存货质押库存管理模型,确定每种商品质押量和采购量.研究表明:商品利润越小、需求均值越小的商品,需要持有的商品量越小;通过质押该种商品来采购利润更大、需求更大的商品,从而增加企业利润. By pledging a certain kind of goods and obtaining funds to purchase other goods, so as to optimize the situation of the enterprise’s goods holding.Through the analysis of the enterprise’s profit under the random demand environment, we build a multi-species stock pledge inventory management model, Purchasing quantity.The research shows that the smaller the product profit, the smaller the average value of the product, the smaller the quantity of the product need to be held, and the bigger and more profitable product is pledged to increase the enterprise profit by paring the product.