The invention discloses a power distribution network fault processing method for a suburb long overhead line-oriented fault indicator. Board turning information of the fault indicator hung on an overhead line of a suburb power distribution network is sent to an automated master station system of the power distribution network, according to a grid structure of the power distribution network and real-time information of equipment operation, and in combination with a fault signal, a fault is analyzed and processed through fault positioning, fault isolation and fault recovery. The power distribution fault processing method for the suburb long overhead line-oriented fault indicator provided by the invention improves the fault processing efficiency of the power distribution line, and shortens the time of power failure, thereby becoming an effective means of improving power supply reliability of rurban and rural power distribution networks.