Abstract: A bicycle wire supporting frame includes a ring cover capable of being assembled to a head rod of a bicycle; the ring cover having an axial through hole for receiving the head rod; an extension portion extended from one end of the ring cover; and a wire hole penetrating through the extension portion along an axial direction. An upper opening of the through hole is connected to an inclined ring for receiving a receiving lower edge of a C ring so that the head rod is tightly engaged to the through hole of the ring cover. An inner side of the through hole is formed with an inclined surface so as to receive an inclined surface of the tapered ring so that the head rod is tightly engaged to the through hole of the ring cover. A slit penetrates through the extension portion.