Abstract: Currently, in the process of intelligent, green, and low-carbon development of medium and low voltage distribution networks, problems such as high distribution network failure rate, long fault location time, slow fault isolation, and delayed power restoration are prominent. To address these contradictions, conducting research on fault self-healing in distribution networks is one of the most effective methods. Self healing is the core content of achieving intelligent development in distribution networks. This article analyzes the self-healing control technology for fault range protection in intelligent distribution networks. This article introduces the characteristics and implementation methods of fault self-healing control in intelligent distribution networks. At the same time, an analysis was conducted on the fault self-healing process of the intelligent distribution network of the differential protection collaborative main station.