Abstract: A system and a method of material management are proposed, which can be applied to a system for managing procurement and sale of materials and products, allowing materials to be received and issued in a first-in-first-out manner that, materials received at earlier material-receiving dates are prior to be issued for use, so that problems of material hoarding and expiring material validity can be eliminated. A user at a terminal device can provide material-receiving or material-issuing data required for conducting a material-receiving or material-issuing operation through the use of the material management system, in which two-way communication is established between the material management system and the user, allowing the user to realize a current material-receiving or material-issuing condition in real time.