The invention discloses a relay protection spare part management system, which comprises a database server and an application server. The database server and the application server are connected to the cloud service platform; the cloud service platform is connected with the mobile terminal through a communication module. The application server is connected with a plurality of client computers; Theapplication server is provided with an equipment management module, a spare parts management module, a spare parts stock-in management module, a spare parts stock-out management module, a spare partsstock-out management module, a spare parts stock-out management module and a spare parts scrap management module. In accordance with that prior art, the relay protection spare part management management system and method adopt Internet of things and mobile Internet technology, 'full information identification code' of spare part is realized, the intelligent supervision of spare parts in and out of warehouse, automatic reminder of inventory, intelligent analysis of big data, and establishment of intelligent, dynamic and accurate management system of spare parts for relay protection are realized, which greatly improves the standardization level of the site, enhances the management level of spare parts, reduces the difficulty of management, and has high production efficiency.