A braking device for a spool that is rotatably supported by a reel body includes a spool braking device, a rotational speed detector, and an electronic controller. The spool braking device is configured to brake a spool in an electrically controllable manner. The rotational speed detector is configured to detect a rotational speed of the spool. The electronic controller is configured to control the spool braking device to brake the spool with a first braking force for a first predetermined period of time, and control the spool braking device to brake the spool with a second braking force that is based on a change in the rotational speed after the first predetermined period of time has elapsed.本發明可抑制反彈發生，並提高捲筒制動之精度。捲筒制動部31具有可與捲筒軸一體旋轉地設置之至少一個磁鐵41及串聯連接之複數個線圈42。捲筒制動部31藉由發電制動捲筒。轉速檢測部32檢測捲筒之轉速。控制部34以第1制動力對捲筒制動第1特定時間而控制捲筒制動部31。再者，控制部34以基於經過第1特定時間後之轉速之變化之第2制動力制動捲筒而控制捲筒制動部31。
