PROBLEM TO BE SOLVED: To provide a spool of a fishing spinning reel capable of reducing the resistance given to the fishing line at the front flange portion of the spool when the fishing line is discharged. SOLUTION: The spool 10 of the present invention comprises a fishing line winding body portion 20 around which fishing line is wound, and a front flange portion 30 and a rear flange portion 40 which define the amount of winding of the fishing line winding body portion 20. ing. An outer peripheral surface 32 extending in the front-rear direction is formed at the outer end of the front flange portion 30 in the radial direction, and a convex portion 31b having a surface protruding radially outward is provided on the front side of the outer peripheral surface 32. The outer peripheral surface 32 is characterized in that a clearance R is formed between the outer peripheral surface 32 and the convex portion so that the discharged fishing line does not come into contact with the surface. [Selection diagram]【課題】釣糸放出時にスプールの前フランジ部分で釣糸に与える抵抗を軽減することが可能な魚釣用スピニングリールのスプールを提供する。【解決手段】本発明のスプール10は、釣糸が巻回される釣糸巻回胴部20と、釣糸巻回胴部20の糸巻量を規定する前フランジ部30及び後フランジ部40と、を備えている。そして、前フランジ部30の径方向外端に、前後方向に延びる外周面32を形成し、外周面上32の前方側に、径方向外方に表面が突出する凸状部31bを設け設け、外周面32は、放出される釣糸が表面接触することがないように凸状部との間で隙間Rを生じさせることを特徴とする。【選択図】 図3