The project research integrates the advantages of multiple disciplines such as forensic medicine, imaging, automotive engineering, computer simulation, damage biomechanics and spectroscopy. Guided by actual identification cases, it has created a precedent for digital forensic medicine research and identification, forming a digital digital forensic research and identification system such as virtual anatomy, digital simulation reconstruction of accident scenes, digital damage modeling, and machine learning model construction of time of death. It was the first in China to propose to use digital virtual anatomy technology to guide or replace the application research of traditional autopsy, and to delve into the applicable conditions of virtual anatomy technology in the analysis of injury methods and causes of death. It was the first in the world to formulate the "Forensic Virtual Anatomy Operating Procedures", has been applied as a ministerial standard issued by the Ministry of Justice. It is the first in China to use MSCT technology and MIMICS software to realize virtual anatomy, angiography and three-dimensional visualization reconstruction of ex vivo and in vivo organs (heart and brain). The established technical method for MSCT angiography of cadaver has been patented and has been promoted and applied in judicial appraisal practice. It is the first in China to carry out digital technology based on multiple information fusion such as remote sensing aerial photography, photogrammetry, 3D laser scanning, and multi-rigid body simulation to complete traffic accident reconstruction and human injury analysis. For the first time, research has introduced genetic optimization algorithms into traffic accident identification across borders to solve accident collision patterns, which has greatly improved the stability and reliability of traffic injury simulation; for the first time, road safety prevention research has been carried out based on remote sensing aerial photography technology and 3D laser scanning, and reconstruction data analysis has a prominent role in improving road safety; Innovative use of motion capture systems, multi-rigid body dynamics methods, and finite element methods has effectively solved the bottleneck problem of complex traffic accident identification and secondary injuries of multiple people and multiple vehicles through independently established damage models. It is the first in the field of forensic science to carry out personalized and systematic finite element modeling of the human body and analyze the biomechanical mechanism of damage. It innovatively systematically carries out traffic injuries, high fall injuries based on real cases, THUMS dummy models and independently constructed damage finite element models. Research on the biomechanical mechanism of injuries such as blunt instrument injuries, and systematically analyzes the changing process of human stress, strain, displacement, speed, acceleration and other damage response parameters under different injury conditions. The research is the first in the field of forensic science to digitize traditional spectroscopic technology and combine it with big data machine learning matrix algorithms. It clarifies the temporal changes of chemical compositions of postmortem tissues of animals and humans, screens molecular spectral indicators, and constructs different temperatures, humidity, and The intelligent inference model of the time of death under the influence of complex factors such as cause of death is effectively applied to the identification of homicide time under complex conditions, providing important scientific evidence for the detection and trial of criminal cases. The research team has gone deep into the research and application of digital forensic science technology. In the past 11 years, it has published 2 monographs such as "Theory and Practice of Digital New Technology of Forensic Pathology", formulated 2 industry standards, obtained 1 invention patent authorization, 1 software copyright, and published 43 academic papers, including 18 articles included in SCI, which were cited a total of 60 times, and 15 public reports at international conferences. Supported by the national ldquo; 12th Five-Year Plan; and ldquo; 13th Five-Year Plan; 3 National Natural Science Foundation projects and 1 social development project of the Shanghai City Science and Technology Commission have been approved. A total of 1 postdoctoral student, 3 doctoral students, and 14 master's students have been trained. It has effectively solved the damage mechanism, identification of the cause of death and inference of the time of death in many major and important cases entrusted by public, procuratorial and legal units such as the Hainan Province Political and Legal Affairs Commission and the Guangzhou City Procuratorate. CCTV, Shanghai TV and other media have publicized and reported it many times, with remarkable social benefits. At present, relevant technologies have been well applied in social appraisal institutions serving society such as the Beijing City Security Bureau, Shanghai City Public Security Bureau, Shanghai City Procuratorate, Ningbo City Security Bureau and other units, as well as Hubei Province Judicial Appraisal Association.