A kind of buoy having both Buoyance adjustment Yu fish gathering function,It include that seat and a circuit device are floated in a light transmission,It includes one first room and one second room being isolated from each other that seat is floated in the light transmission,A mass is arranged for user in second room,The circuit device sets in what first room and includes a circuit board and at least once light-emitting component,The lower light-emitting component sets the lower surface of the what circuit board and continuous illumination； User can distribute the weight of the mass voluntarily to grasp the sink-float sensitivity of buoy,And according to the phototaxis of fish,The lower light-emitting component can attract the shoal of fish actively to come to eat bait,Increase the chance of Hook Shang fish Zhi.一種兼具浮力調整與集魚功能的浮標，包含有一透光浮座與一電路裝置，該透光浮座包含有彼此隔離的一第一容室與一第二容室，該第二容室供使用者設置一配重物，該電路裝置設於該第一容室中且包含有一電路板與至少一下發光元件，該下發光元件設於該電路板的下表面且持續發光；使用者可自行分配該配重物的重量以掌握浮標的沉浮靈敏度，且根據魚的趨光性，該下發光元件可吸引魚群主動前來吃餌，增加魚隻上鈎的機會。
