The present invention relates to an artificial fish breeding farm and an artificial fish breeding farm building method. According to the present invention, the artificial fish breeding farm can be easily built during buoy connection based solely on underwater connection of inclined lines for seaweed growth. Accordingly, the artificial fish breeding farm can be built within a short period of time. In the case of fish breeding farm building deep in the sea, a buoy line is shortened and is supported by the inclined lines for seaweed growth connected to multiple fish reefs. Accordingly, buoy line cutting can be minimized. The artificial fish breeding farm can be vertically built by means of the inclined lines for seaweed growth provided in multiple stages deep in the sea. The present invention includes: the multiple fish reefs provided with multiple circumferential fish reef rings, which are made up of underwater rocks, stones, or artificial fish reefs positioned on a seabed surface with circumferential gaps； the buoy floating on the water surface directly above the center of the multiple underwater fish reefs on the seabed surface, the buoy line being provided in a lower portion of the buoy； an upper connecting member having an upper ring to which the lower portion of the buoy line is connected in its upper portion, having multiple circumferential rings on its circumference, and immersed in water； and the multiple inclined lines for seaweed growth for connection between the fish reef rings of the fish reefs and the circumferential rings on the circumference of the upper connecting member.본 발명은 수중에서 해조류 성장 경사줄의 연결만을 통해 부표를 연결하면서 인공어장을 간단하게 시공함으로써 인공어장의 시공 기간을 단축시킬 수 있고, 수심이 깊은 수중에 어장을 시공할 경우에 부표줄을 짧게 줄이면서 부표줄을 다수의 어초에 연결된 해조류 성장 경사줄로 지지함에 따라 부표줄의 끊어지는 것을 최소로 줄일 수 있고, 수심 깊은 수중에서 다단으로 구비되는 해조류 성장 경사줄을 통해 인공어장을 수직으로도 시공할 수 있는 인공어장 및 인공어장의 시공방법에 관한 것으로, 둘레에 다수의 어초 고리가 구비되고, 수중에 침수되어 수중 지면에 둘레 간격으로 두고 위치되는 바위나 돌 또는 인공어초로 구성되는 다수의 어초와； 상기 수중에 침수되어 수중 지면에 위치된 다수의 어초들의 중앙의 바로 상
