The present invention protects the submarine cable of the wind power generator by inserting it into the coastal sea where the wind power generator is built, and at the same time provides a breeding and hiding place and habitat for aquatic life inhabiting the offshore coastal sea, as well as the protection of marine life and marine resources. And an artificial reef equipped with a protection duct function for offshore offshore wind power cables that can be nurtured, the configuration comprising: a plurality of supports 101 and a plurality of frames 102 connecting upper and lower ends of the supports It is composed of a hollow inside and the front, rear, left, right, upper and lower surfaces are formed so that the artificial reef 100 of a hexahedron is formed, but the upper binding grooves on both sides of the frame located on the upper front of the artificial reef ( 110) is formed, the upper coupling hole 120 is formed on both sides of the frame located on the upper rear of the artificial reef is tightly fitted and coupled to the upper, In the lower part of the artificial reef, a duct 130 is formed to be connected from the front to the rear, and a hole 140 communicating with the inner hollow of the artificial reef is perforated on the wall surface of the duct, and a lower binding groove ( 150) is formed, and at the outlet of the duct, a lower fastener 160 is formed to be tightly fitted into the lower fastening groove to connect and install each artificial reef, and at the same time accommodate the submarine cable C into the duct. It is made to be configured to protect.본 발명은 풍력 발전기가 세워진 연근해에 투입하여 풍력 발전기의 해저 케이블을 보호함과 동시에 연근해 해양에서 서식하는 수생생물의 번식과 은신처 및 서식처를 제공하고, 그와 아울러 해양생물의 착생과 수산자원의 보호 및 육성할 수 있도록 한 연근해 해상용 풍력발전 케이블 보호 덕트 기능을 구비한 인공어초에 관한 것으로, 그 구성은, 복수 개의 지주(101)와 그 지주의 상·하단부를 연결하는 복수 개의 프레임(102)으로 구성되어 내부가 중공이고 전·후·좌·우·상·하 면이 상호 통하도록 형성된 육면체의 인공어초(100)를 마련하되, 그 인공어초의 상부 전면에 위치한 프레임의 양측에는 상부결속홈(110)이 형성되고, 상기 인공어초의 상부 후면 위치한 프레임의 양측에는 상기 상부결속홈과 긴밀히 끼워 결합되는 상부결합구(120