The invention belongs to the field of power distribution network fault analysis, and particularly relates to a multi-source information fusion power distribution network fault analysis method based on a directional laying fuzzy Petri network. The method includes the steps: firstly, extracting movement information, time-sequence information and relevant electric quantity information of protectors (breakers) according to a SCADA (supervisory control and data acquisition) system and a WAMS (wide area measurement system), building row vectors based on protection directions, and performing information correction by the aid of the electric quantity information of protectors (breakers); secondly, acquiring a fault area boundary breaker through corrected breaker shift information, rapidly determining a fault area by the aid of a depth-first search method along the direction of a power failure side of the fault area boundary breaker, and directly outputting an element to serve as a fault element if the fault area only has one element.