High-quality Yb-doped large-mode area silica glass optical fiber has attracted much attention in the world over the past decade, due to its application in high-power fiber lasers and amplifiers. In this paper, several Yb-doped large-mode area silica glass optical fibers which have been successfully used in high-power laser systems are introduced. The development of Yb-doped large mode area silica glass optical fiber in China is analyzed. Finally, it is forecasted that the Yb-doped large-mode area silica glass optical fiber has wide application prospects.