The invention discloses an intelligent power grid overhaul system based on network topology. The system comprises a network system, an OPEN3000 system and an information management system. The OPEN3000 system is provided with a central processing module, an information memory module, a plan management module, an information analyzing module and a fault analyzing module. The central processing module is connected with the information memory module, the plan management module, the information analyzing module and the fault analyzing module. The network system comprises a center node, a transition node, a power grid subsidiary station node, a data collecting node and a mobile phone terminal. The center node is connected with the power grid subsidiary station node and the mobile phone terminal through the transition node. The network topology structure is reasonable, and prevents power grid data information from being lost or blocked in the transmission process; meanwhile, the system has the data collecting, storing and analyzing functions, a corresponding mapping table is generated through the data for checking, judging is carried out according to the analysis result to provide a corresponding solution scheme, and the system function is powerful.