The present invention provides a Led ventilative structure of fishing lamp comprising a lamp casing formed a space inside, and a light is defined in the space, the lamp casing has at least one through hole which correspondingly communicates with the space, said through hole sets a proofed breathable member which closes said through hole, said proofed breathable member ventilates toward the outside of the lamp casing in only one-way direction. When the light emits light and generates heat or is cooled by liquid, air can dissipate heat by proofed breathable member toward the outside of the lamp casing in one-way direction so as to balance the pressure of air thermal expansion and contraction in the lamp casing, and prevent light destroyed or fog generated when steam enters the lamp casing, and thus enhance the luminous efficacy of fishing lamp in order to increase the effectiveness of attracting fishes.本發明係提供一種集魚燈之LED透氣結構,其包含:一燈座,其內部形成一容室,且該燈座於該容室內對應組設至少一發光元件;該燈座設有至少一對應連通該容室之通孔,且所述通孔對應封閉設置一防水透氣元件,所述防水透氣元件係僅朝燈座外部方向單向透氣者;藉之,當發光元件發光產生熱量或受液體冷卻時,空氣可由防水透氣元件單向朝燈座外部散熱,以平衡燈座內部空氣中熱漲冷縮之壓差,並能夠防止水氣進入而造成發光元件損壞或產生霧氣,進而提升集魚燈整體之發光效能,藉以增進誘集魚群之效能者。1‧‧‧燈座12‧‧‧通孔13‧‧‧固定單元131‧‧‧螺牙部14‧‧‧穿孔15‧‧‧定位單元151‧‧‧螺牙件2‧‧‧發光元件3‧‧‧散熱板4‧‧‧防水透氣元件5‧‧‧電源供應單元51‧‧‧導線
