An indoor circulating water culture system includes at least one first culture tank, a first treating tank, a second treating tank, a third treating tank and a cover body, in which the first, second and third treating tanks are disposed at one side of the first culture tank. With the level difference and water flow of the first culture tank, sewage in water can be collected and discharged to the first treating tank via a first water outlet on a bottom of the first culture tank. The water flow travels to the second treating tank after the sewage is separated by a solid-liquid separator of the first culture tank. Then the water flow travels to the third treating tank after protein and grease are separated by bubbles generated from a bubble generator in the second treating tank. At last, after ammonia nitrogen, nitrous acid, virus and bacteria contained in the water flow are processed by a filtration unit provided in the third treating tank, decomposed and eliminated by a sterilization unit provided in the third treating tank, the water flow processed by the above-mentioned treatments to have a cleaned water quality again can be discharged to the first culture tank, thereby promoting quality of culture creatures. In addition, the indoor temperature can be maintained by using a constant temperature plate disposed inside the cover body to prevent the culture creatures from being influenced by an explosive climate.一種室內循環水養殖系統,包括至少一第一養殖槽、一設置於該第一養殖槽一側的第一、第二、第三處理槽及一罩體,以該第一養殖槽的高低位差及水流流動將污物收集並經第一養殖槽底部的一第一出水口排至一第一處理槽,水流經由第一處理槽的一固液分離機將水中污物及水流分離後再流至一第二處理槽,第二處理槽設置的一氣泡產生機藉由氣泡分離水流中蛋白及油脂後流至一第三處理槽,最後水流內所含之氨氮、亞硝酸、病毒及細菌將被第三處理槽所設的一過濾單元及一殺菌單元分解並消滅後,透過以上處理後水流得以回復其乾淨水質便可再排放回到該第一養殖槽;藉以提高養殖物品質,並透過罩體內側設置的恆溫板保持室內的溫度,使養殖物不易受氣候劇變影響。20‧‧‧第一養殖槽201‧‧‧塑膠地膜21‧‧‧一側211‧‧‧另一側23‧‧‧第一管路232‧‧‧第一入水口25‧‧‧湧浪機26‧‧‧增氧機30‧‧‧第一處理槽31‧‧‧容室311‧‧‧第二入水口33‧‧‧第二管路35‧‧‧固液分離機36‧‧‧驅動單元40‧‧‧第二處理槽43‧‧‧氣泡產生器44‧‧‧第三管路50‧‧‧第三處理槽51‧‧‧第一隔板52‧‧‧第二隔板53‧‧‧第一槽室54‧‧‧第二槽室55‧‧‧三槽室56‧‧‧第四管路57‧‧‧殺菌單元58‧‧‧第五管路581‧‧‧輸出端
