A dual-bearing reel spool braking device for applying a braking force to a spool rotatably mounted on a reel body, the dual-bearing reel spool braking device includes a brake drum, a rotating member, and a brake shoe. The brake drum is configured to be non-rotatably attached to the reel body. The rotating member is configured to rotate in conjunction with the rotation of the spool. The brake shoe is detachably attached to the rotating member and configured to contact the brake drum. The rotating member comprises a main body section, a swinging shaft section indisposed on the main body section and swingably supporting the brake shoe, and a main body section configured to guide the brake shoe when mounting the brake shoe to the swinging shaft section.