The present invention relates to multifunctional artificial reefs for marine ecosystem restoration, A reef sphere having a polygonal horn shape inclined from the bottom of the reef to the top part, a large side fish moving passage formed with moving passages of fish on each side and top and bottom of the reef sphere, a small side fish moving passage, and a vertical fish moving passage And a fish habitat space part in which the fish are freely typed in the inside of the reef sphere and form a habitat, spawning and avoiding space to form a nest of fish, and a marine plant on the top, the side, and the bottom of the reef sphere. Uneven parts for easy habitating and growth of marine plants by providing a smooth space for easy spore implantation and stable root immobilization of plants, and are installed at the bottom of the large lateral fish passage, octopus, squid, octopus Multifunctional composite artificial reef for marine ecosystem restoration comprising a marine small animal habitat comprising a growth space for molluscs, such as Bars, In the artificial reefs, a vertical fish movement passage penetrating the sphere in the form of a circular column in the center, a vertical fish movement passage penetrating the four surfaces of the bottom of the fish sphere, and four of eight surfaces of the fish sphere are opened to free the movement of the fish. Large lateral fish migration passage, hollow structure inside the reef sphere, a fish habitat part that provides a space for growth, habitat and spawning, easy spore implantation of marine plants on the side of the reef sphere, stable roots of plants Alternative to artificial reefs, consisting of uneven parts to facilitate the habitat and growth of marine plants by providing a smooth space for achieving immobilization, The artificial fish weighing apparatus according to any one of claims 1 to 3, wherein the artificial fish candle has a triangular hollow structure, Which is an irregular part for facilitating the habitat an
