The invention belongs to the technical field of part transportation, and in particular, relates to a H-Frame automatic wire supply system for part transportation. The system comprises a wire edge platform, a tray and a H-Frame automatic connecting rod transfer car; the wire edge platform is fixed on the ground; the H-Frame automatic connecting rod transfer car comprises a main body frame, a support and guide mechanism, a taking and feeding mechanism, a common rail connecting rod mechanism and an electric control module; the support and guide mechanism is used for supporting and guiding the tray; the taking and feeding mechanism is used for taking down the tray from the wire edge platform or feeding the tray to the wire edge platform; and the common rail connecting rod mechanism is used forcontrolling a motion trajectory of the H-Frame automatic connecting rod transfer car. The system uses a traction AGV (or a tractor) for carrying with the H-Frame automatic connecting rod transfer carto supply wires, needs no manual operation in the whole wire supply process, can automatically take and feed the tray through a H-Frame, is free of fatigue through automatic wire supply, can work by24 hours, and meanwhile, is lower in cost compared with an AGV, convenient to maintain, high in compatibility and reliability and high in production efficiency.