The present invention relates to a ditch flowing into streams and rivers excellence, more particularly, to a river or relates to the ecological ditch to purify pollutants to remove contaminants to flow type filter having a filter medium and vegetation plants to purify pollutants into the ditch to prevent the contamination of surface flows come together in the rain and the river. In other words, ecological ditch to purify pollutants according to the present invention, the sewage or sewage and wastewater flowed through the drain pipe in the ditch that flows to the stream or river to enter, which is formed above the trench bottom trench wall; and a ditch on the floor Installation and sewage or sewage and Muel O flow type filter material to secure the filter media and filter media flow type filter for purifying waste water filter included in the home; installed between the home and the filter cloth being studied so that the plants growing vegetation; is formed. ; 展开▼