The utility model relates to the field of structures of a fish tank illuminating lamp, in particular to a dazzle light structure of the fish tank illuminating lamp. The dazzle light structure of the fish tank illuminating lamp is mainly composed of a lampshade, and an LED lamp is arranged inside the lampshade. The dazzle light structure of the fish tank illuminating lamp is characterized in that the two ends of the lampshade are respectively provided with a fluorescent screen. The two ends of the lampshade are respectively provided with the fluorescent screen, dazzle light is emitted through the fluorescent screens when the lampshade is connected with a power supply and the LED lamp lights up, and therefore the aim of playing a role of a bright light or an indicator lamp is achieved. To cover a part of the dazzle light of the fluorescent screens, edge covers are further installed at the two ends of the lampshade to prevent the visual effect from being stimulated caused by too strong luminance. According to the structure, not only is the aim of playing the role of the bright light or the indicator lamp achieved, but also the attractive and changeable effect caused by addition of the dazzle light of the LED lamp is achieved, and the dazzle light structure of the fish tank illuminating lamp is simple in structure and strong in practicability.一種魚缸照明燈之炫光結構,主要包括:一燈罩,該燈罩內側置設LED燈,外側上設散熱板;一邊蓋,該邊蓋固定於燈罩兩端;一螢光板,該螢光板置設於燈罩與邊蓋之間;藉由在燈罩兩端置設螢光板之設計,如此構造不僅達到亮燈或指示燈之目的,又增加LED燈的炫光達到美觀多變效果。