Fanchang kiln was one of the earliest Chinese bluish-white porcelain kilns which fired this special porcelain class as early as in Five Dynasties (AD 907-960). This paper aims to explore the characteristics and evolution of chemical compositions of bluish-white porcelain glaze in Fanchang kiln as well as the technology sources of early bluish-white glaze in Southern China. To determine the chemical compositions of bluish-white glaze from Five Dynasties to the middle Northern Song Dynasty at Fanchan kiln, Energy Dispersive X-ray Fluorescence Spectrometry (EDXRF) was used and the results were analyzed synthetically with the chemical compositions of white porcelain glaze of Ding kiln in northern China; and blue porcelain glaze of Yue kiln in southern China. The analytic results indicate that the chemical compositions of major, minor and trace elements in porcelain glazes changed greatly in the middle North Song Dynasty with the fall of SiO2 and the rise of CaO, but the oxide contents of coloring elements like Fe, Mn, Ti change slightly during this period. Color shift from whitish to green of bluish-white glaze might be related to the change of bodys color at Fanchang kiln. Meanwhile, the chemical composition of early bluish-white glaze represented by Fanchang kiln in south China is similar to Ding kiln in northern China. Its glazed formulation process may be derived from the white kiln represented by Ding kiln in northern China at the same period, and it has little relationship with the Yue kiln in southern China. The research results are of great significance to understand the chemical compositions characteristics of early bluish-white glaze in China as well as the exchange of porcelain making technology between the north and south China during the Late Tang Dynasty and Five Dynasties.