A kind of luminous buoy of tool broken string recycling function includes mark point, a mark foot and one sets mark body between what mark point and the mark foot. The mark point includes the electroluminescent cell that an at least energization Hou generates instruction light source, the mark foot includes a jack hole to wear hook-linking line, and the mark body includes that supply effect is driven by electricity power supplier unit and an interconnecting piece the mark foot is arranged that the electroluminescent cell generates instruction light source, and the interconnecting piece has a magnetic attraction element along mark body inner wall setting. Thereby, when this creation luminous buoy what breaks, the luminous buoy can be fetched by another magnetic attraction element, avoids the unnecessary money expenditure of angler.一種具斷線回收功能的發光浮標,包含有一標尖、一標腳以及一設於該標尖與該標腳之間的標身。該標尖包含至少一通電後產生指示光源的電致發光元件,該標腳包含一用以穿接釣線的穿接孔,而該標身包含有一供給作用電力驅動該電致發光元件產生指示光源的電力供給單元以及一用以設置該標腳的連接部,且該連接部具有一沿該標身內壁設置的磁吸元件。藉此,本創作發光浮標於斷線時,可藉另一磁吸元件將該發光浮標取回,避免釣者不必要的金錢支出。