A spool brake device (25) is configured to brake a spool (12) capable of winding thereabout a fishing line having a terminal tackle. The spool brake device (25) includes a spool braking part (40), a spool controlling part (42, 72), a rotational speed detecting part (41), and a water landing determining part (74). The spool braking part (40) is configured to electrically brake the spool (12) in releasing the fishing line. The rotational speed detecting part (41) is configured to detect a rotational speed of the spool (12). The water landing determining part (74) is configured to brake the spool (12) in a predetermined timing after starting of casting with a braking force greater than a predetermined braking force, and to determine whether or not the terminal tackle is in a water landing state in accordance with a detection result of the rotational speed after releasing of braking. The water landing state indicates that the terminal tackle is in water.
