The invention discloses a novel stay wire downlift device. The device comprises a first screw rod, a main bushing and a second screw rod, wherein one end of the first screw rod is connected with a stayed pole, the other end of the first screw rod is connected with the main bushing, the other end of the main bushing is connected with the second screw rod, an internal thread is arranged in the main bushing, external threads matched with the internal thread of the main bushing are arranged at the ends where the first screw rod and the second screw rod are contacted with the main bushing, the lower end of the second screw rod is connected with a steel strand, and the first screw rod, the main bushing and the second screw rod are all made of aluminum alloys. In total, the novel stay wire downlift device has the advantages of being simple and convenient to mount, firm to fix, high in safety, easy to adjust and capable of being repeatedly used and avoiding waste.