A stay wire manufacturing platform comprises a bottom plate, a supporting plate, a check block device, a support device, a cutting device, a pressing device, a supporting device, a motor device and a fixing device. First supporting rods are arranged on the bottom plate. A first bent bar and a first vertical rod are arranged on the supporting plate. The check block device comprises a check block, a first cross bar, a first gripping bar and first springs. The support device comprises a second supporting rod, a third supporting rod, a second cross bar, a first support, a fourth supporting rod, a third cross bar and a fourth cross bar. The cutting device comprises a first air cylinder, a first push rod, a cutting knife, a second spring, a second support, a first fixing block and a first positioning rod. The pressing device comprises a second air cylinder, a third support, a second push rod, a second fixing block, a rotary frame, a third spring, a third fixing block, a pressing rod, a pressing block and a first friction block. The supporting device comprises a first supporting block, a second friction block and a fifth supporting rod. According to the stay wire manufacturing platform, the labor intensity of workers can be greatly relieved, and the work efficiency is improved.