This creation relates to an indoor aquaculture net pool roof structure. The outer periphery of the net pool locks a plurality of support columns in an equidistant or non-equidistant manner. The plurality of support columns are connected to an annular outer positioning frame. The outer positioning frame is connected inwardly to the roof, and the roof is inclined inwards from the outer positioning frame; an inner positioning frame is connected near the lowest point of the roof slope, and the inner positioning frame is provided with a plurality of inner pull members To connect with a positioning column protruding from the water tank, the inner positioning frame is connected to the outer positioning frame with a plurality of outer pull members, each of the outer pull members is connected to the roof with a plurality of connecting members Connection; the lowest point of the roof slope is provided with a port, the port is connected to a collection pipe; the inner positioning frame is connected to a water spray pipe extending the outer positioning frame; thereby effectively reducing the height of the roof, and It can avoid being blown by strong wind, and at the same time, the roof can be used to collect rainwater, and can be used as a breeding water for natural sunlight. The ultraviolet sterilization and heating effect can reduce the construction cost of the roof and reduce indoor circulating breeding water. Processing costs.本創作係有關一種室內水產養殖淨水池屋頂結構,該淨水池外周緣以等距或不等距的方式鎖設複數個支撐柱,該複數個支撐柱內連接一環狀外定位框,該外定位框朝內連結該屋頂,該屋頂由該外定位框朝內呈傾斜狀設置;該屋頂傾斜處的鄰近最低點附近連結一內定位框,該內定位框以複數條的內拉件來與一由該淨水池凸伸的定位柱連結,該內定位框另以複數條的外拉件來與該外定位框連結,每條該外拉件以複數個連結件來與該屋頂連結;該屋頂傾斜處的最低點設有通口,該通口連接一收集管路;該外定位框內側連結有一延該外定位框設置的噴水管;藉此有效降低該屋頂的高度,而可避免受到強風的吹毀,同時可使該屋頂具備收集雨水,以及可作為養殖水自然日光的紫外線殺菌與加溫效果,從而可一方面降低該屋頂的建造成本及降低室內循環養殖水的處理成本。