To verify catch performance of LED fish-attracting lamp in actual scene,contrast test was made. We equipped LED lamps(300W rated power each) on squid jigging vessel of Ningtai 61 and also sent another squid jigging vessel of Ningtai 62 equipped with Metal Halide Lamps(MHL) as contrast. Both vessels fished in southeast pacific ocean off the coast of Peru at same time.We recorded the yield and fuel every day, meanwhile we tested illumination and spectrum around ship. After comprehensiveness analysis, we reached the conclusion:the equal illumination curve of 0.1 Lx of LED lamps could reach 35 m in vertical direction, 10 m distance less compared with MHL;In vertical direction, illumination distribution of LED is analogous to MHL.LED spectrum distribution power attenuation rate underwater was less than MHL.LED fish lamp becomes really adequate, not just reducing fuel consumption but also having same catch performance compared with MHL light in the process of fishing. LED fish-attacting lamp can be a new light source for replacing traditional fish lamp.