The invention provides a clean water sludge reproduction-based light-weight pellet material, a preparation method and a manufacturing system thereof. The method for manufacturing a clean water sludge reproduction-based light-weight pellet material comprises conducting modification of a clean water sludge with an additive, adding water to be granulated into a green pellet ball in a half-dry state, and further fired through a thermal processing in a rotary kiln, thereby a light-weight pellet material being able to be used in the construction projects is formed.本發明提供一種淨水污泥再製輕質粒料、其製作方法及其製造系統。本發明之淨水污泥再製輕質粒料之製作方法,其係將淨水污泥經添加劑改質後,加入水分製粒成半乾基狀態之生料球,再經熱處理程序,以迴轉窯燒成可應用於營建工程之輕質粒料。