An amplification device for sea fish-collecting lamp is hung between fish-collecting lamps and includes a hanging mechanism and a light reflection mechanism.The hanging mechanism includes an assembling part assembled to a cable or a shaft, and a support plate extended from one side of the assembling part.The light reflection mechanism is connected to the support plate and has a main body with a reflection face, which reflects the light from the fish-collecting lamp to enhance illumination breadth and brightness.一種海上集魚燈的增幅器,用以吊掛在集魚燈之間,包括:一吊掛機構及一光反射機構。該吊掛機構上具有至少一組接於該纜繩或橫桿上的組接部,該組接部的一側至少延伸有一支撐板。該光反射機構係連接於該支撐板上,其上具有一本體,該本體的表面上具有一反射面,該反射面用以反射集魚燈所產生的光源,以增加集魚燈的照射輻面及亮度。10...增幅器1...吊掛機構11...組接部12...通孔13...螺栓14...螺帽15...支撐板16...連結件161...內螺紋2...光反射機構21...本體22...反射面23...連桿231...螺紋部20...纜繩