Fixing rack attached with biological experiment test plate

The utility model discloses a fastening bracket for settled organism experiment boards, comprising a frame body and four brackets which are respectively fixed on the four corners of the bottom of the frame body; a plurality of holes used for bundling are arranged on each edge of the frame body; both the frame body and the brackets are made of angle iron bars; wherein the right-angle openings of the four angle iron bars of the top face of the frame body are arranged opposite to each other pairwise, and the right-angle openings of the angle iron bars at the bottom are in the same arrangement with those on the top surface; the angle iron bars on the side face are arranged with the right-angle openings facing the interior of the frame body. The utility model can conveniently assemble settled organism experiment boards and can be steadily fixed in seawater and is more convenient for the research of organisms settled on artificial fish reeves.