Mechanically pre-treated combustible waste was carbonized at 350 ~ 500oC. In order to determine the optimum carbonization temperature of the produced material, the energy yield, fixed carbon rate, fuel ratio, combustibility index, and characteristics of the coal band were studied. The sample (C425) carbonized at 425oC turned out to be the ideal one in terms of the energy yield and fuel characteristics. Grinding and washing were used for dechlorination of C425. Of these two methods, particle diameter of less than 0.125 mm and washing within two turns displayed chlorine concentration of 0.3%. These results not only satisfied the recommended standard for coal and mixed fuel (0.5wt.%) but also the quality standard for solid fuel (2.0wt.%). In conclusion, carbonization of combustible waste materials resulted in fuel characteristics similar to those of coal, indicating that this process allows for the production of solid fuel with low chlorine content.