Abstract: Objective The injury instruments were identified and studied according to the cleaver traces on bone.Methods The bone and fresh shrub branches were cut with the same part of the same cleaver respectively.To visualize the traces on the bone by histological processing and to match the traces on bone and branch by the comparison microscope.Then to analyze the character of traces on the bone.Results Cutting-line traces made by cleaver on the bone can be fully matched with those in the shrub branch sample.Conclusion Cleaver traces on the bone can be displayed clearly and shown at micro level.It will provide a new method for the identification of suspected weapon.

Key words: forensic pathology, wounds and injuries, skeleton, cleaver trace