The invention discloses a background power distribution monitoring system based on Google Earth, relates to the background power distribution monitoring system, especially a monitoring system suitable for a power generation station, a transformer substation or a power distribution station. The system comprises a front service layer, an access layer, an application management layer, a storage layer and an interface layer connected in order; an operation of a desktop client to the data information of a core business database comprises data information adding, modifying and deleting, and comprises the following steps: 1) performing primitive annotation on a base map, and performing image naming according to the geography appearance; 2) performing type annotation on the base map layer, and saving the corresponding longitude and latitude numerical values at the same time; 3) opening a primitive editor to further describe the corresponding base map layer in detail; 4) annotating paths in different types, drawing the primitives and finally saving; 5) performing parameter setting on the drawn primitives, and saving and 6) performing default or defect recording on the primitives in the step 5), uploading the fault or defect pictures, and then saving.