The utility model discloses a fragment launcher. A driving charge is arranged at the rear end of a fragment, and the fragment is driven by the driving charge to fly through high-temperature and high-pressure gas which is generated by self explosion. Fixing rings for fixing the fragment and the driving charge are arranged at the outer ends of the fragment and the driving charge in a sleeving way. The metal fragment which is 16-25g in mass can be launched by the fragment launcher at a speed of 1000-2500m/s. The fragment launcher can be applied in the fragment impact tests of energetic materials, such as explosives and solid propellants. The fragment launcher has a simple structure and has advantages over the study of the fragment impact characteristics of the energetic materials.