Abstract: Two groups of cadaver skulls were struck with a hammer and a club respectively, Various types of skull injuries were yielded. The experiments showed the relationship between the festures of the skull injuries and the shapes of the weapon used and also the manners in which they were applied to the skulls. We also found that: the most prominent and the widest part of the linear fracture is not certainly the point of impach the separation of cranial suture relates not only with the striking force but also with the pattern and extent of the suture closure; the hammer with a circular face can cause an oval perforated fracture.