The production practice shows that the primary factor affecting the effect of fishing by lighting is the light source, including the intensity of light source, the color of light and the configuration of lamps. For example, under the condition of dark adaptation, young and adult anchovy have the highest phototaxis to blue light and green light, and the lowest phototaxis to red light. After the transition from dark adaptation to light adaptation, the color light with the highest phototaxis moves to yellow and green light. Under the conditions of dark adaptation and light adaptation, mackerel has the greatest phototaxis to purple light and red light. After the LED underwater fish-collecting lamp is powered on, the whole system is controlled by software. According to the objective situation of different fishing grounds and the different physiological and ecological characteristics of target fish, the brightness, color and dynamic change effect of light source are configured to lure fish. Users can set the display content of the fish-catching lamp through the remote controller or the control keys on the underwater LED fish-catching lamp to meet the actual needs. LED underwater fish-collecting lamp can display images of favorite foods, the same species and various things of fish to attract fish, and can also display related images of natural enemies of fish to drive and control fish. Scientific fishing, rational development and utilization of fishery resources, protection of fish reproduction and proliferation, to achieve the goal of sustainable development. At present, the cost of LED underwater fish collecting lamp is high, and the luminous flux, consistency and reliability of LED light source need to be improved. The energy-saving effect of LED fishing lights has been confirmed in Japanese squid fishing industry, but the popularity of LED fishing lights is still not good. Whether the squid fishing boat with LED fishing lights has a long-term sustainable fishing effect needs to be confirmed. At present, the application research of LED underwater fish lamp is still in its infancy, lacking systematic research data and achievements. However, with the continuous development of science and technology and the improvement of various technologies, LED underwater fish-collecting lamp will become a major fishing aid equipment with broad application prospects.