PURPOSE: An aggregate producing system using construction industry wastes is provided to facilitate the emission/collection of wastes and minimize an amount of the wastes contained in the produced aggregate. CONSTITUTION: The system comprises: a feeder(2) to feed an aggregate; a first conveyer(4) for conveying the aggregate through the feeder(2) into a first jaw crusher(3); a first separator(7) for separating wood or metal from the aggregate and to load the separated materials individually according to its kind before the aggregate through the feeder(2) is input into the first jaw crusher(3); a second feeder(6) for conveying the crushed aggregate by the first jaw crusher(3) into a second jaw crusher(5); a third and fourth conveyer(8) for conveying the crushed aggregate by the second jaw crusher(5) into a second separator(7) for classifying and loading the crushed aggregate according to its size; and a first and second return conveyer(10,11) for conveying the aggregate which is not classified by the second sep
