It is important to confirm the chemical composition of ancient Chinese glass. In this study, methods such as proton-induced X-ray emission (PIXE), inductively coupled plasma atomic emission spectrometry (ICP-AEP), and energy dispersive X-ray fluorescence spectrometry (EDXRF) were used on glass artifacts from the Warring States period which had been unearthed from places such as Xinjiang, Hubei, Henan, and Chongqing. These samples include monochromatic glass beads, compound eye-beads and glass discs (Bi). The study shows that, three kinds of glass; Na2O-CaO-SiO2, K2O-SiO2 and PbO-BaO-SiO2 coexisted in Xinjiang during the Warring States period. These artifacts were distributed in an area covering Northwest China, the valleys of the Yellow river and the Yangtze river, and other places such as Sichuan and Guizhou. The eye-beads unearthed from the Marquise of Sui belong to the Na2O-CaO-SiO2 system. But their Na2O content was lower than that of the typical western Na2O-CaO-SiO2. It also contained some PbO. All the artifacts unearthed from the city of Chongqing belong to the PbO-BaO-SiO2 system. For the monochromatic beads and the compound eye-beads of the Warring States period (475-221 B.C.), their chemical composition could be traced to two different silicate glass systems, the K2O-SiO2 and the PbO-BaO-SiO2. Think that the technical development of these two glass systems is supposed to the related. With the results gathered, the paper also presents a discussion about the places where the glasses were produced and other related issues.