Cr4+-doped transparent Li1.14Zn1.43SiO4 glass-ceramics were prepared by high-temperature melting and subsequent heat-treatment, and the crystalline, microstructural, and luminescence properties of the products prepared by different-temperature heat-treatment were investigated. Results showed that the glass-ceramics heat-treated at 580 ℃ for 2 h contained nano crystallines of about 5 nm in size, and a broadband infrared emission centered at 1226nm with full width at half maximum of more than 230 nm and a decay time of about 200.07 s were observed by exciting with an 808 nm laser diode. Mean while, it is believed that the crystalline field environment of Cr4+ is changed with the increase of heat-treatment temperature, which results in blue shift and red shift of absorption and fluorescence spectra, respectively.