The present invention relates to an artificial fish sanctuary for fixing marine organisms installed in water in order to increase marine life and fish resource in offshore, comprising a body 10 having a certain thickness radially protruding in five directions from the center； A porous panel 20 inserted into the coupling grooves 12 formed on the surface of the main body 10 protruding in five directions from the center and being integrally coupled to each other； Supporting pillars (30) vertically connected to ends of the body (10) protruding in five directions with a predetermined length； A connecting column (40) horizontally coupled between the lower portions of the respective support columns (30)； A first fixing groove 21 formed at the edge of the porous panel 20 for fixing and inserting a work 2 therein and a second fixing portion 21 formed to insert and fix the work 2 on the supporting column 30, And a groove (31). The present invention has a wide space between the lower part of the main body and the support pillars and is advantageous for the habitat of marine organisms such as octopus, sea cucumbers, turtles and fishes and the habitat of seaweeds, thereby activating the propagation of fishery resources, It is possible to maximize the transplanting length and transplanting effect of seaweeds by stable and safe transplantation between the upper part of the main body made of high-strength concrete with excellent durability and the supporting columns, and the low- toxicity porous panel, And the effect of reducing the carbon dioxide (CO2) of the algae can be obtained.본 발명은 근해에서 해양생물의 착생과 어족자원을 늘리기 위하여 수중에 설치되는 해조류 종사 고정용 오각기둥 형상의 인공어초에 관한 것으로, 중심에서 5방향으로 방사상 돌출된 일정 두께의 본체(10)； 상기 중심에서 5방향으로 돌출된 본체(10) 표면에 각각 형성된 결합홈(12)에 삽입되어 일체 결합되는 다공질패널(20)； 상기 본체(10)에서 5방향으로 돌출된 단부에 일정 길이로 세로로 결합된 지지기둥(30)； 상기 각각의 지지기둥(30)들 하부 사이에 가로로 결합된 연결기둥(40)； 상기 다공질패널(20) 가장자리에 종사(2)를 삽입하여 고정하기 위하여 형성된 제1고정홈(21), 및 상기 지지기둥(30) 상부에 종사(2)를 삽입하여 고정하기 위하여 형성된 제2고정홈(31)을 포함하여 이루어진 것이다. 본 발명은 본체
