Hadronic calorimeter (HCAL) is an important part of the calorimeter system in Circular Electron Positron Collider (CEPC). The design of glass scintillator coupled with silicon photomultiplier
(SiPM) was proposed by the Institute of High Energy Physics of Chinese Academy of Sciences.How to explore and improve the scintillation performance of the glass is the key of current research. The energy spectra of the glasses under X-ray, relationship between X-ray luminescence intensity, Gamma light yield (LY) and minimum ionizing particle (MIP) response of the glasses was investigated. The results indicate that Gamma light yield and MIP response can accurately reflect the scintillation properties of the glass scintillator.