Centralized procurement is a form of organization and implementation of government procurement, by the government will have a scale, including the batch size of the procurement project, included in the centralized procurement directory, unified by the centralized purchasing agency to carry out procurement activities, so as to obtain the economies of scale of government procurement.?
Decentralized procurement is relative to centralized procurement, is also a form of government procurement organization and implementation. According to the Government Procurement Law, the main body of decentralized procurement is each purchaser, that is, government administrative institutions at all levels, excluding centralized purchasing agencies. The scope of decentralized procurement refers to procurement projects other than those included in the centralized procurement catalog at all levels of government.