Damage enhanced materials were used to improve damage efficiency of fragments antiaircraft weapons. A kind of damage enhanced fragments (DEF) containing Al/PTFE with dimension of Φ10 mm×10 mm was designed and prepared. Damage performance experiments show that damage enhance fragments attack targets not only by kinetic energy,but also by combined damages such as exploding,overpressure, high temperature,and setting fire etc. The results show that the designed damage enhance fragments have remarkably higher damage performances than steel fragments with the same dimensions,and its potential chemical energy is 12.4 times as high as its kinetic energy.