The utility model relates to an artificial fish reef. A cave-serried reef body comprises a cylindrical base block, a plurality of main inclined rods are fixedly connected on each side face of the base block, the main inclined rods are provided with a plurality of branch inclined rods, and the branch inclined rods are provided with a plurality of cave clusters. The cave clusters comprises a plurality of first plastic bottles with bottom ends up and bottle bottoms removed, the inner cavities of the first plastic bottles form caves, and the open bottom ends of the plastic bottles form the mouths of the caves. The cave-serried reef body can be made by using waste conveniently and is easy to recover, and solves the problems that construction of an existing fish reef consumes effective resources, and has no effective caves or serried caves are hard to manufacture.