An anti-reverse device for a fishing reel (1) that may include an anti-reverse gear (12) provided on a rotator (10) rotated by a handle operation, an anti-reverse pawl (20) to be engaged with the anti-reverse gear (12), and a cam (30,130) controlling engagement and disengagement of the anti-reverse pawl (20) with the anti-reverse gear (12) in accordance with a rotational direction of the rotator (10). The cam (30,130) includes a friction clip (31,32) attached to the rotator (10) and rotating together with the rotator (10) with a friction force between the rotator (10) and the friction clip (31,32,131), and a bias member (34,132,232) biasing the friction clip (31,32,131) in a direction in which a clamping force of the friction clip (31,32,131) member is increased. The friction clip (31,32,131) includes two clip members (31,32,133,134) clipping the rotator (10), a connecting portion (35,135) connecting the two clip members (31,32,133,134) so as to be openable and closable, and an engaging portion (37,136,236,33
