Liquid crystals, with external filed induced tunability of optical properties, has great application advantages in switchable glass. Compared with traditional single liquid crystal materials, liquid crystal-polymer composites can achieve dynamic regulation of incident light by adjusting the interaction between liquid crystals and polymer networks. Therefore, the photoelectric properties of liquid crystal-polymer composites are more excellent. The electrical response switchable glass based on polymer liquid crystal material has the characteristics of easy control, stable effect, fast response, etc., which can meet people’s immediate needs and has been widely concerned by researchers. In this paper, the research progress of electric controlled switchable glass based on polymer dispersed liquid crystals (PDLCs)‍, polymer stabilized liquid crystals (PSLCs) and polymer stabilized cholesterol phase liquid crystals (PSCLCs) in recent years is reviewed and discussed, and the future development trend of these switchable glasses is forecasted.