In recent years, with the continuous miniaturization of components and the requirements for more compact and highly reliable products, effective microjoining has become one of the important parts of micromanufacturing. Several methods have been successfully used to microjoin similar or dissimilar materials. However, for transparent and fragile materials, such as glasses, the effective microjoining has been being a challenge. Nowadays, a few kinds of lasers have been widely used for welding many materials, but for lasers with long pulse width,the energy can hardly be absorbed and the thermal expansion may make the glasses broken, which is not suitable for glasses microjoining. Due to the excellent characteristics of little thermal effect of heating materials and nonlinear absorption, ultrashort pulsed lasers are very suitable for microjoining glasses, which has become a hot research field of micromanufacturing. The mechanism of ultrashort pulsed laser microwelding of glasses, the existing problems and the potential applications are elaborated. The future trends of ultrashort pulsed laser microwelding of glasses are also prospected.