The problem of the present invention is to provide a spinning reel for fishing with which it is possible to avoid a reduction in function in a spool reciprocating device while reducing the size of the reel body. The present invention is a spinning reel (100) for fishing provided with a reel body (1) and a rotor (2) that is rotatably supported by the reel body (1), the reel body (1) being provided with: a body (10) in which a side opening (13) is formed, the spool reciprocating device (70) being accommodated and supported inside the body (10)； a lid member (30) for closing the side opening (13)； and a cover member (40) attached to the rear part of the body (10), a handle shaft (5) being rotatably supported by the body (10) and the lid member (30), the spinning reel (100) for fishing characterized in that a rear opening part (15) is formed in the rear part of the body (10), so that at least some of the constituent members constituting the spool reciprocating device (70) are received through the rear opening part (15) and are disposed rearward thereof； and the cover member (40) covers the rear opening part (15) and the constituent member.L'invention concerne un moulinet de pêche permettant d'éviter une réduction de fonctionnement d'un dispositif alternatif de bobine, tout en réduisant la taille du corps de bobine. L'invention concerne un moulinet de pêche (100) comprenant un corps de bobine (1) et un rotor (2) soutenu rotatif par le corps de bobine (1), ce dernier (1) comprenant : un corps (10) dans lequel est formée une ouverture latérale (13), le dispositif alternatif de bobine (70) étant reçu et soutenu à l'intérieur du corps (10) ； un élément couvercle (30) destiné à fermer l'ouverture latérale (13) ； et un élément de recouvrement (40) fixé sur la partie arrière du corps (10), une tige de poignée (5) étant soutenue rotative par le corps (10) et l'élément couvercle (30). Le moulinet de pêche (100) selon l'invention se caractérise en ce qu'une partie ouverture arrièr
