PROBLEM TO BE SOLVED: To provide a stopper of a fishing rod for disengagement prevention in which a locking member is included for preventing the fishing rod from being locked by the fishing rod holding unit and dragged when the fish snaps at bait after providing the fishing rod in the fishing rod holding unit.SOLUTION: A stopper 30 of a fishing rod for disengagement prevention comprises a body 100, a connecting member 200 and a locking member 300. The connecting member 200 is connected between the body 100 and the locking member 300, and is included to prevent loss of a fishing rod 10. A fishing rod holding unit 1 for supporting the fishing rod 10 is formed in a "Y" shape, and a locking hole is formed in the lower end so as to make the locking member 300 be locked. When the fish snaps at bait of the fishing rod 10 and is moved, if the fishing rod is disengaged from the fishing rod holding unit 1, the locking member 300 connected by the connecting member 200 from the body 100 of the stopper is locked to the fishing rod holding unit 1 and can be retained.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】釣竿を釣竿保持部に設けた後、魚が餌に食いついた場合、釣竿が釣竿保持部に係止されて引きずられてしまうことを防止する係止部材が備えられた離脱防止用の釣竿の口栓の提供。【解決手段】離脱防止用の釣竿の口栓30は、本体100、連結部材200、および係止部材300からなり、連結部材200は本体100と係止部材300の間に連結され釣竿10の紛失を防止するために備えられる。釣竿10を支持する釣竿保持部1は「Y」字状に形成され、下端には係止部材300が係止されるように係止孔が形成されている。魚が釣竿10のエサに食いついて移動する際、釣竿が釣竿保持部1から離脱されると口栓の本体100から連結部材200で連結された係止部材300が釣竿保持部1に係止されて保持できる。【選択図】図2