The invention relates to a distribution network first-aid system and method capable of combining with a power network graph. The distribution network first-aid system comprises information acquisition equipment, a master station platform and a mobile application end, wherein the information acquisition equipment, the master station platform and the mobile application end are successively connected through a wireless communication network; the master station platform comprises a database and an internal application end; the database comprises a basic equipment information unit module, a basic personnel information unit module and a first-aid repair information module; the internal application end comprises a data information processing analysis module, a total area map display module, an in-graph positioning display module, a fault login module, a first-aid work order distribution module and a mobile end authorization module; and the mobile application end comprises a mount guard/departure information recording module, a task center module, a power grid map module and a mobile terminal registration module. The distribution network first-aid system can thoroughly break through an original low-efficiency work mode which is in contact through a workstation circulation work order and a telephone, meanwhile, first-aid personnel can quickly position faults, working efficiency is improved, and a phenomenon of the reception missing of the work order is avoided.