The present invention has sufficient endurance strength against the front, rear, and lateral waves, and it is easy to manage seawater due to free opening and closing of the sluice, and it is possible to freely adjust the height, length, and cross-sectional area of the tank by constructing a breakwater in a block form. It is related to a breakwater block type farm whose structure is improved so that the gates of the farm can be opened and closed by non-power using buoyancy. The present invention is a base block fixed to be seated on the upper side of the foundation； Seated on the upper side of the base block, the blue waves transmitted from the front of the outer sea to the inner sea side are offset and spaced at regular intervals so that the seawater flows into the inner tank side, and the front surface is composed of a plurality of first blocks fixed to the upper side of the base block Blocks； A side block composed of a plurality of second blocks arranged to be stacked on the foundation ground on both left and right sides of the front block and fixed to the foundation ground； A rear block composed of a plurality of third blocks connecting the ends of the side blocks； A water tank having a space portion inside the front block, the side block, and the rear block and having a water gate opened and closed by buoyancy means； Binding means for binding a plurality of first, second, and third blocks constituting a front block, a side block, and a back block； And fixing means for fixing at least one of the first, second, and third blocks constituting the front block, the side block, and the rear block to the foundation ground.본 발명은 전,후방향 및 측방향 파랑에 대해 충분한 내구 강도를 가지며, 수문 개폐가 자유로워 해수 관리가 용이할 뿐만 아니라, 방파제를 블록형태로 구성하여 높이와 길이 및 수조의 단면적을 자유롭게 조절할 수 있으며, 부력을 이용한 무동력으로 양식장의 수문을 개폐 동작시킬 수 있도록 그 구조가 개선된 방파제 블록타입 양식장에 관한 것이다.본 발명은 기초 지반의 상측에 안착되도록 고정되는 베이스블록과； 베이스블록의 상측에 안착되며, 외해의 전방에서 내해측으로 전달되는 파랑이 상쇄되면서 해수가 내측의 수조측으로 유입되도록 일정 간격 이격되게 배치되고, 베이스블록의 상측에 고정되는 복수의 제1블록으로 구성된 전면블록과； 전면블록
