The invention relates to a luminous sink, which comprises a body and a luminous device. The body comprises a holding groove and at least one ring； the holding groove is concave on the top of the body； and both ends of the at least one ring are arranged on the top of the body. The luminous device is arranged in the holding groove of the body. A light-emitting device is arranged in the holding groove at the top of the body to overcome the defects of easily damaged fishing lights in water and entanglement caused by too many accessories on the fishing line and different water resistance.本創作係關於一種可發光沉子，其包含一本體及一發光裝置。該本體包含一容置槽及至少一環圈；該容置槽凹設於該本體之頂部；至少一環圈之兩端設於該本體頂部。該發光裝置設於該本體之容置槽內。本創作所述之可發光沉子，於本體頂部之容置槽設置一發光裝置，克服了水中捕魚燈易受損壞，以及因魚線上輔具過多，水阻不同而造成纏線之缺點。
