The invention relates to a culture system for circulation of culture water, which comprises: a culture barrel； a filter barrel, which is connected with the culture barrel, and the culture water overflows from the culture barrel to the filter barrel； a sterilization unit, which is connected between the culture barrel and the filter barrel, and the culture water flows back to the culture barrel after entering the sterilization unit through the filter barrel； and The oxygen supply unit is connected with the culture barrel and the filter barrel.In order to maintain the circulating filtering function of the aquaculture water, and without the use of additional pumping equipment, the aquaculture water can be filtered into the filtering bucket.本創作係有關於一種養殖系統，供一養殖水循環流通，該養殖系統包含：一養殖桶；一過濾桶，連接該養殖桶，該養殖水由該養殖桶溢流至該過濾桶；一殺菌單元，連接在該養殖桶及該過濾桶之間，該養殖水經由該過濾桶進入該殺菌單元後回流至該養殖桶；以及一供氧單元，連接該養殖桶及該過濾桶。藉以維持養殖水的循環過濾功能，且無需使用額外的抽水設備即可使養殖水流進過濾桶進行過濾。
