Power distribution network communication fault diagnosis method and system

The invention provides a power distribution network communication fault diagnosis method and system, and relates to the technical field of power distribution network communication. The method comprises the following steps: acquiring communication state data and network topology structure data of a power distribution network; analyzing the communication state data through a fault analysis model to generate a fault analysis result of each communication link in the target area, and determining a target communication link in the target area; acquiring equipment state data of the target communication link, inputting the equipment state data into the equipment detection model, and generating an equipment diagnosis result; acquiring environment monitoring data of the target communication link, inputting the environment monitoring data into the environment analysis model, and outputting an environment analysis result; and determining a communication diagnosis result of the target communication link based on the equip