The invention discloses an efficient wiring harness detection device, which is composed of a main control module including a computer, an embedded system, a master wiring harness detection interface,slave wiring harness N (N=1, 2,...N) short interfaces, a PCB (Printed Circuit Board) and the like. The wiring harness detection device provided by the invention is butted with a to-be-detected wiringharness formed by multiple wires in one time through a connector, has a short circuit detection mode and an open circuit detection mode, indicates through multiple paths of LED lamps corresponding tothe to-be detected wiring harness, and visually judges whether there is a short circuit or an open circuit in the to-be-detected wiring harness. The wiring harness detection device can test the multiple wires in the to-be-detected wiring harness in batches, completes the detection for the wiring harness simply, quickly and efficiently, is low in cost and applicable to detection of large-batch low-voltage wiring harnesses, greatly improves the efficiency of voltage wiring harness detection and effectively ensures the quality, safety and reliability of automobile wiring harnesses.