The invention provides a material supply platform and system, relating to the technical field of material supply, the platform comprising a project demand module, which is used for obtaining project information and generating corresponding material information according to the project information, wherein the material information comprises one or several of material types, parameters, quantity andconstruction time; a supply information module configured to obtain material supply information, wherein the material supply information includes one or more of a supply price, a type, a parameter, aquantity and a delivery time; a supply selection module configured to select at least one first target supplier according to the comparison result by comparing the material information and the material supply information through a preset rule; a monitoring module used for obtaining the material production progress of the first target supplier according to the preset time node, monitoring and reminding according to the delivery time, and monitoring and managing the material supply process. The platform is open and transparent and improves the material supply efficiency to a great extent.