The invention relates to the technical field of wiring a vehicle depot of a metro traction power supply system and particularly relates to a novel vehicle depot reflowing cable and steel rail wiring method based on a track circuit mode. The novel vehicle depot reflowing cable and steel rail wiring method is characterized in that the specific wiring method comprises the following steps: (1) arranging main reflowing cables on the outer sides of a station track I and a station track N, and additionally arranging auxiliary reflowing boxes between every two tracks from the station track I to the station track N; (2) connecting N soft cables between the reflowing boxes; and (3) connecting the three soft cables (or two soft cables, wherein the quantity is selected according to practical engineering conditions) led out from the reflowing boxes to a connectable steel rail on the adjacent side. By additionally arranging the reflowing boxes, connection points of the cables and the steel rail are greatly reduced, and the cables are prevented from adapter coupling through the steel rail, so that the construction and installation cost and the operation and maintenance cost are reduced, and the reliability of a reflowing path is also improved; and the novel vehicle depot reflowing cable and steel rail wiring method based on the track circuit mode has relatively high popularization and application values, and can be applied to the field of metros in China.