This creation system is a kind of electronic floating unit, including buoy ontology, hollow conductive cylinder, Float tail and illuminating module with the first engaging portion. One end of buoy ontology, and the accommodating space with set battery and the conductive part for being electrically connected battery is arranged in hollow conductive cylinder, and Float tail includes light-transmission tube and the second engaging portion. Illuminating module is arranged in Float tail, includes circuit board and light-emitting component, and circuit board includes the first guiding access and the second guiding access； Wherein, Float tail be combined with each other and is fixed on buoy ontology through the second engaging portion and the first engaging portion, is electrically connected the second guiding access via the conductive part of hollow conductive cylinder through first electrode portion the first guiding access of electric connection and second electrode portion between circuit board and battery to reach and be electrically connected； Stable conductivity and the simple electronic floating unit of structure are provided accordingly.本創作係為一種電子浮標，包括具有第一結合部的浮標本體、中空導電筒、浮標尾及發光模組。中空導電筒設置在浮標本體的一端，並具有容置電池的容置空間及電性連接電池的導電部，浮標尾包含透光管及第二結合部。發光模組設置在浮標尾內，包含電路板及發光元件，電路板包含第一導接端及第二導接端；其中，浮標尾透過第二結合部與第一結合部相互結合而固定在浮標本體上，電路板與電池之間透過第一電極部電性連接第一導接端及第二電極部經由中空導電筒的導電部而電性連接第二導接端來達成電性連接；據此提供導電性穩定且結構簡單的電子浮標。
