In addition, negative values of a* and b* were measured from the glazes at 1160–1190 C, indicating that the values lay in the lower left quadrant (green and blue region) with coordinates. While fired the glazes at 1220–1310 C, negative values of a* and positive values of b* were obtained, which indicated that the values lay in the under left quadrant (green and yellow region) with coordinates. Hence, it was found that the firing temperature was a main factor of the L* and b* values in the present system. Combining the performance and color of glaze surfaces at different firing temperatures, the glazes with better surface appearance and colors could be obtained at temperatures between 1190 and 1250 C, and the glazes fired at 1160 C,1220 C and 1280 C need to be further researched.