A hinge connects a screen to a master body of a notebook computer. The hinge includes a vertical pivot shaft mounted to a screen and a first connecting pivot seat through a plurality of springs and the corresponding nuts thereof, which enables the screen to pivot around the vertical pivot shaft relative to the master body; a first connecting pivot seat mounted to the vertical pivot shaft and a horizontal pivot shaft; a horizontal pivot shaft mounted to the first connecting pivot seat and a second connecting pivot seat, comprising an outer sleeve and an inner pivot shaft that enables the screen to pivot in horizontal relative to the master body; and a second connecting pivot seat mounted to the horizontal pivot shaft and the master body.