Abstract: Vacuum glass is a high-quality transparent thermal insulation material with low heat transfer, good sound insulation performance, strong anti-condensation ability, long service life, and other characteristics; it can be widely used in construction, facility agriculture, refrigerator, locomotive, ships, and other fields. In this paper, the development of vacuum glass technology is reviewed, and its research progress is summarized. The structure and classification of vacuum glass, sealing technology and sealing materials, support column structure, arrangement and materials are emphasized. Finally, the development trend of vacuum glass technology in the future is prospected.