Abstract
Human injuries of damages were two major factors. One was a set of physical factors and another was a set of biological & medical factors. The set of physical factors was composed of about four factors, which mainly corresponded to the height, area, weight and collision-time to govern external impacts for human bodies. The biological factors to be based on individual differences were so complex that it is not easy to research the estimation of organs damages. Adopting anatomical criteria, AIS or HIC and using those s set of physical factors, we can easily attain the average damages of human bodies, however, the estimation of individual damages is no so easy to do. We can obtain the important values of the collision time and impact responses with using the impact-falling test, which is a kind of excellent nondestructive tests.