Abstract: For finding out the source of raw materials and classification relationship of different glaze colors Junguan porcelain bodies, 50 body samples of Junguan porcelain with eight different glaze colors were selected, and nine chemical compositions in the body samples were determined by proton induced X-ray emission（PIXE）. The data were analyzed by fuzzy cluster analysis method. The result indicates that all Junguan porcelain bodies are divided into 3 categories, and they might be made from different group of raw materials. The sources of the raw material and the compositions of Junguan porcelain bodies of different category are similar but not the same. It can be concluded that the kiln workers of that time used the same group of raw material to fire the various glaze colored porcelains.