Abstract: The distribution network is the last link in power supply services, and the length of the time for restoring power after a fault directly affects the user experience. Therefore, it is of great practical significance to study the assessment method of distribution network fault self-healing capability with engineering application value. This paper starts from the actual demand of power grid enterprises for fault handling, and proposes an assessment method of distribution network fault self-healing capability based on multi-source information, fully considering the impact of network structure construction, configuration of automation equipment, defects of automation equipment, and protection configuration on the self-healing assessment results. Finally, an actual feeder in the Qingdao area is selected as a case study to verify the feasibility and effectiveness of the fault self-healing capability assessment method proposed in this paper.