供货商管理库存系统（Vendor-Managed Inventory，简称VMI）是为制造商或供货商提供客户服务策略的信息系统。根据EDI、ERP系统透过互联网提供的信息，供货商可以迅速了解销售点的存货，然后通过预先设置的程序计算得知需要补充的货物种类和数量，以此把销售点的存货维持在适当的水平，最终达到降低物流中心库存成本个提高客户服务质量的目的。

Vendor-managed inventory (VMI) is a family of business models in which the buyer of a product (business) provides certain information to a vendor (supply chain) supplier of that product and the supplier takes full responsibility for maintaining an agreed inventory of the material, usually at the buyer's consumption location (usually a store). A third-party logistics provider can also be involved to make sure that the buyer has the required level of inventory by adjusting the demand and supply gaps.