The utility model provides a with station equipment complex distribution network earth fault positioning system, includes the earth fault indicator, stand in undercurrent fault line selection equipment, stand interior signal injection equipment, distribution automation system display platform and wireless communication module, undercurrent fault line selection equipment was connected in signal injection equipment passed through wireless communication module and stands in standing, undercurrent route selection equipment is connected with earth fault indicator and distribution automation system display platform through wireless communication module respectively in standing, and the testing result of earth fault indicator reports distribution automation system display platform through wireless communication module, the utility model discloses an earth fault positioning system, the fault point search time shortens greatly, and the cost is lower, and is more anti -interference moreover, and emotionally compare it is littleer the possibility to appear by mistake.