Proton induced X-ray emission (PIXE) technique is an effective method for the chemical composition analysis of ancient glass samples without destruction. Chemical composition of the ancient glass samples dated from the Warring States Period (770—476 B.C.) to the Six Dynasties Period (220—589 A.D.)

which were unearthed in Sichuan area

was quantitatively determined by the PIXE technique. The results show that the glass Bi (disc) and the glass eye beads of the Warring States Period all belong to the PbO-BaO-SiO2 system. According to the composition and shape

we infer that these glass Bi and eye beads were made in China. Whereas

the chemical compositions of the glass ear pendants and beads of the Six Dynasties Period are varied

including K2O-CaO-SiO2

K2O-SiO2 and other glass systems. Based on the obtained results and those from literatures

some questions related to the technical propa-gation of the ancient Chinese glass are discussed.