The article on the base of the analysis of at present our country's mining group purchasing management and the storage control's malpractice status, proposing the vision of constructing web purchase platform in our country's mining group and implementing subsidiary unit production materials storage control by group corporation web purchase and construct storage control system; Designing the model structure of the mining group storage control system on web purchase; Proposing the core algorithm of subsidiary unit production material storage control and designing the algorithm principle, authenticating the storage control algorithm by example.