An anti-reverse device for a fishing reel according to an embodiment includes an anti-reverse gear provided on a rotator rotated by a handle operation, an anti-reverse pawl to be engaged with the anti-reverse gear, and a cam controlling engagement and disengagement of the anti-reverse pawl with the anti-reverse gear in accordance with a rotational direction of the rotator. The cam includes a friction clip attached to the rotator and rotating together with the rotator with a friction force between the rotator and the friction clip, and a bias member biasing the friction clip in a direction in which a clamping force of the clip member is increased. The friction clip includes two clip members clipping the rotator, a connecting portion connecting the two clip members so as to be openable and closable, and an engaging portion formed in one of the two clip members to engage with the anti-reverse pawl.