Abstract: In order to explore the impact energy release characteristics regularities of ZrTiCuNiBe amorphous alloy and tungsten-fiber reinforced amorphous alloy composites, a Φ14.5 mm ballistic gun launcher and the quasi-sealed test chamber system were used to get two typical fragments for further analyzing the release energy effect at different impact velocities. The temperature rise and overpressure curves were produced for ZrTiCuNiBe amorphous alloy fragments and tungsten-fiber reinforced amorphous alloy composite fragments after impact energy release in the quasi-sealed test chamber. So the impact energy release law of these kinds of material was obtained, the influence mechanism of tungsten fiber on ZrTiCuNiBe amorphous alloy was clarified, and the broken particles of fragments and some reaction products were also got and observed. The results show that the temperature rise and overpressure time history curves of the two fragments produced by impact energy release are characterized by rapid rise and then slow decline. The growth rate of temperature rise and overpressure peak increases first and then decreases slowly with the impact velocity. The temperature distribution inside the quasi-sealed test chamber is not uniform after the impact energy release of the fragments. The impact reaction threshold speed of ZrTiCuNiBe amorphous alloy fragments is lower than that of tungsten-fiber reinforced composite fragments. Under same impact velocity, the reaction efficiency of tungsten-fiber reinforced composite fragments and the energy density per unit mass are lower. It is also shows that the smaller the particle diameter after fragmentation, the higher the degree of chemical reaction.