Abstract: With an evaluation method based on damage effect on plate and over-pressure impulse criteria, the evaluation experiments of damage power of 3 kinds of FAE warheads are carried out. The TNT equivalent masses of FAE warheads are calculated. The test results indicate that: the deflection of plate subject to 1# FAE becomes larger than that of RDX/TNT with same mass when the distance becomes larger than 3.8m. Between 3.8m and 4.2m, the TNT equivalent mass of 1# FAE is about 2.0. Between 13m and 18m, the deflection of plate subject to 2# FAE is about 1.4 times of 3# FAE, the TNT equivalent masses are 3.75 and 2.96 respectively. The research shows that the damage power can be obtained rapidly with this evaluation method and its experimental method. The results are reliable which can be guidance of evaluation of damage power of FAE warhead.