On the basis of experimental research, penetration effect of the targeting attitude of tungsten column whose length-diameter ratio is 1:1 target on 40Cr target was studied by numerical simulation. The relationship between incident angle and the limit penetration velocity, and the relationship between the incident angle and residual velocity after penetrating target were got. At the same time, limit penetration velocity of tungsten penetrator with the same specifications but different thickness between homogeneous armor steel and 40Cr steel was studied. The conclusion is that two speed ratio is 1.13:1, providing the basis for seeking the low equivalent target. The results have actual guiding significance on fragment damaging warhead.