The invention discloses a multiple-track direct-supply traction network fault location method, which comprises the following steps: establishing a setting value area in a substation feeder protectiondevice, and inputting setting valves according to traction network line parameters; and cooperating with a substation feeder protection function to realize fault location. The beneficial effects are that the method solves the problem of influence of uplink/downlink mutual reactance of the multiple-track direct-supply traction network on reactance-method fault location and realizes accurate calculation of fault distance of the multiple-track direct-supply traction network; the method can obtain accurate fault distance for both the multiple-track direct-supply traction network with uniformly-distributed line parameters and the multiple-track direct-supply traction network with non-uniformly-distributed line parameters; the method can realize fault location by adding a corresponding softwarefunction in the substation feeder protection device without need of a special fault location device, and has the advantages of low cost, simple realization and accurate distance measurement and the like; and through cooperation of the fault location function and a protection function, fault location of the multiple-track direct-supply traction network under various fault conditions is realized.