To enable a fishline to be guided smoothly in a bail-less type fishline-guiding component and a rotor of a spinning reel.

A first fishline-guiding mechanism 76 has a supporting member 70 freely turnably attached to the tip of a first rotor arm 31, a fixed shaft 73 fixed to the supporting member 70, a line roller 71 having a roller freely turnably supported by the fixed shaft 73 and guiding the fishline, and a fixed shaft cover 74 for introducing the fishline to the line roller 71. The fixed shaft cover 74 has a large-diameter part 74b protruded in a ring shape at the terminal face at the opposite side of the attaching side of the line roller 71 in the outside direction of the diameter over the perimeter, a protruded part 74a formed so that the tip of the large-diameter part 74b may be protruded to form a nearly spherical shape and to finish the shape, and a slope part 74c formed so as to reduce the diameter smoothly from the base end of the large-diameter part 74b to the line roller 71 attached to the fixed shaft 73.