PROBLEM TO BE SOLVED: To culture eel in an excellent yield.SOLUTION: In an eel culture system including a plurality of culture water tanks for storing water, water supply means for supplying water into each culture water tank, and a filter device for filtering water, as for the culture water tank, a glass eel culture water tank for culturing glass eel, a young Japanese eel culture water tank for culturing young Japanese eel, and an adult eel culture water tank for culturing adult eel are provided respectively separately, and the filter device is provided in the glass eel culture water tank, in the young Japanese eel culture water tank, and in the adult eel culture water tank, respectively.SELECTED DRAWING: Figure 1【課題】 歩留まりよく鰻を養殖できるようにする。【解決手段】 水を貯水する複数の養殖水槽と、各養殖水槽に水を供給する水供給手段と、前記水を濾過する濾過装置とを備えた鰻養殖システムについて、前記養殖水槽は、シラスウナギを養殖するシラスウナギ養殖水槽と、クロコウナギを養殖するクロコウナギ養殖水槽と、成鰻を養殖する成鰻養殖水槽とがそれぞれ別個に設けられ、前記濾過装置は、前記シラスウナギ養殖水槽、クロコウナギ養殖水槽、および成鰻養殖水槽のそれぞれに設けた。【選択図】図1