Abstract: A liquid aeration system comprising: an intermittent liquid feeding means (10) located at an upstream position for receiving liquid from a liquid resource; a liquid storage means (20) located at an downstream position for receiving the liquid from the intermittent liquid feeding means (10) quantitatively and intermittently; and a pipe (30) connected between the intermittent liquid feeding means (10) and the liquid storage means (20), the outlet of which is located below the liquid surface of the liquid storage means (20), such that the liquid can flow from the intermittent liquid feeding means (10) through the pipe (30) into the liquid storage means (20) intermittently and quantitatively using the liquid level difference between the upstream position and the downstream position, so as to inject the air existed in the pipe (30) into the liquid in the liquid storage means (20).