The utility model relates to a wire guiding device suitable for ring spinning core-spun yarn, which comprises a front guide wire group, a rear guide wire group, an iron plate connecting device with a circular hole and a fixing bracket. The device uses a pair of wire guide wheels to control the stability of the tension before the wire is fed before feeding. At the same time, a group of circular spiral holes arranged in a continuous arrangement are opened on the fixed support. The wire guide wheel group is fixed in the circular screw hole through the connecting device on the wire, which can adjust the position and spacing of the guide wire. Thus the tension of the core filament can be adjusted in different spinning process, the spinning process can be optimized, the covering effect of the core filament can be improved and the yarn quality can be improved.