The application discloses a construction method for the construction of multiple prefabricated beams by using a threading
auxiliary system, wherein the threading
auxiliary system comprises a steel strand threading device, an assembled positioning track, a guide power assisting device and a steel strand storage device, the assembled positioning track comprises a plurality of track assembling rods, three moving seats are arranged on the assembled positioning track, and the method comprises the following steps: S1, installing each device to the moving seat; S2, the steel strand storage device stores and positions; S3, moving each device to the positioning track on the construction site; S4, completing the front stretching and traction of the steel strand; S5, completing the threading work of the steel strand by using the device; S6,
cutting the steel strand and moving upward, and completing the threading of other steel strands on the same prefabricated beam; and S7, moving the device on the track, and completing the threading of the steel strands in the prestressed holes of the remaining prefabricated beams. The construction method is suitable for the threading of the steel strands of multiple prestressed beams, has good construction efficiency and high safety.