Abstract: In order to investigate the secondary damage of the glass fragments of the tempered glass subjected to blast shock waves, several explosion experiments were performed on the tempered glass with the thickness of 6 mm, 10 mm and 15 mm, respectively. In the experiments, data collections and statistical work of the size distribution, the splash distance distribution and the maximum splash velocity have been done. According to the experimental results, the size and the splash distance distribution of the glass fragments were analyzed, and the regularity and characteristics of the distribution were proposed. Meanwhile, with the fragment maximum splash distance recorded in experiments and the equation of the flat parabolic motion, the maximum splash velocity of the fragments was estimated, which agrees well with the results of the reference. Experimental results show that the maximum splash velocities of the tempered glass subjected to blast wave in all experiments were larger than 11 m/s, in which the largest one was above 25 m/s.