The invention provides a distributed fault self-recovering method for a power distribution network, and the method comprises the steps: regularly querying the time delay and error code conditions of a communication network through a regional agent power distribution terminal, dividing the communication network into three stages according to the time delay and the error code, and giving an A-stage network announcement if the network time delay is less than 10ms and there is no error code in a short byte; giving a B-stage network announcement if the network time delay is greater than 10ms but less than 100ms and there is no error code in the short byte; giving a C-stage network announcement if the network time delay is greater than 100ms and there is an error code in the short byte; starting the corresponding RA strategy according to the stage of the published network announcement: employing a query mode FA for A stage, an allowed mode FA for B stage and a local control mode for C stage. The method provided by the invention can recover the power supply selection to maximum degree, and improves the power supply reliability.