A meshed state between a drive gear and a pinion gear can be maintained with high accuracy, and rigidity of a reel body is increased. Entry of dust and water between a side opening portion and a lid member is prevented and tangling of a fishing line is avoided. A fishing spinning reel includes a lid member closing a side opening portion provided in a body and a handle shaft is rotatably supported by at least the lid member. A female screw portion is provided on the side opening portion, and a male screw portion is provided on the lid member. There are provided a drive gear, a pinion gear meshed with the drive gear, a front bearing rotatably supporting a front portion of the pinion gear, and a rear bearing rotatably supporting a rear portion thereof.