Ti4+-doped transparent alumino-silicate glass ceramics containing LiAl5O8 nanocrystals are fabricated by the melt quenching method and subsequent heat treatment. Their transition temperatures, crystallization peak temperatures, absorption spectra, emission spectra are measured, and X-ray diffraction (XRD) patterns are recorded at room temperature. The effect of heat treatment on spectroscopic properties of glass ceramic sample is also discussed. Based on the X-ray diffraction result and the Scherrer equation, the size of LiAl5O8 nanocrystals where Ti4+ ions exist in the coordination field of octahedron is about 44 nm. The result shows that, comparing with as-made glass, the emission intensity of the glass ceramic is obviously increased. Moreover, the chromaticity coordinate of the glass ceramic is measured to be (0.263,0.363) which is close to the white light. The results indicate that Ti4+-doped alumino-silicate glass ceramic is potential materials for white light-emitting diodes (WLED).