A braking operation lever (7) for a rotor braking device (11) of a spinning reel for applying a braking force to the rotation of a rotor (3) rotatably supported by a reel body (2), the braking operation lever includes a lever main body (51), an operating section (50), a brake shoe (52), an elastic member (53), and a fall out prevention mechanism. The lever body is rotatably supported by the reel body. The operating section (50) is configured to perform a braking operation, and is disposed on a first end part of the lever main body. The brake shoe (52) is disposed on a second end part of the lever main body, and is configured to be pressed against the rotor (3) by operation of the operating section. The elastic member (53) is disposed between the brake shoe (52) and the lever main body (51). The fall out prevention mechanism prevents the elastic member from falling out of the brake shoe.本發明係於捲線器之轉子制動裝置中，既抑制制動塊之磨耗，亦放寬制動力之調整幅度，且消除經放寬制動力之調整幅度之操作柄之不良情況。該制動操作柄包含：柄本體51，其係自由旋轉地受支持於捲線器本體2；制動操作用之操作部50，其係設置於柄本體51之第1端部；制動塊52，其係設置於柄本體51之第2端部，且藉由操作部50之操作而被按壓至轉子3；彈性構件53；及防脫落機構。彈性構件53係配置於制動塊52之柄本體51側，於制動塊52被按壓至轉子3時一面彈性變形一面將來自柄本體51之按壓力傳遞至制動塊52。防脫落機構係防止彈性構件53自制動塊52脫落。
