The purpose of this study [OS to evaluate the reusability of FRP(Fiber Reinforced Plastics) wastes as a raw material in the manufacturing of cement by investing the physico-chemical properties of FRP wastes and ash fusion temperature. Clinker was made by sintering at 1300-1450℃, using limestone, shale, quartz, fly ash, slag and FRP ash. Free-CaO contents and Burnability Index of the clinker were analyzed. FT was lower than that of the smoky coal and Free-CaO contents was like to. Fine FRP wastes have capability to use raw material and fuel of kiln for manufacturing of cement.