The development of mobile communications has intrigued the soaring demand for mobile electronic devices, causing prosperity in the corresponding cover glass industry. Glass manufacturers have launched their quality products based on traditional aluminosilicate glass, but it is becoming difficult to further improve the performance of glass through traditional methods such as adjusting formulas and improving chemical tempering systems， etc. Recently, transparent glassceramics, which enhances the mechanical properties of glass through crystallization, has attracted extensive attention in the industry. This paper reviewed the mature chemical tempering process and introduced its application in highalkali aluminosilicate glass. Then transparent aluminosilicate glassceramics applied to cover glass were introduced. Finally, the research and development trend of traditional toughened glass and new transparent glassceramics were summarized.