Bite marks are increasingly common in violent cases such as child abuse and sexcrimes. Bite marks are often the result of a suspect's attack or a victim's self-defense. Because humanteeth vary in size, shape and arrangement, bite marks on objects such as skin and food are characteristic. By using this principle, forensic odontology can identify or exclude suspects by comparing actual bite marks with the teeth marks in the mouth. In this paper, the practical application of bite mark evidence, the research status and problems of bite mark analysis are briefly reviewed, and the prospect of bite mark analysis is also discussed.