Abstract: To meet the practical needs of quickly solving traffic accident cases and hit-and-run cases, a method for examining automotive refinish paints was established based on Attenuated Total Reflectance Infrared Spectroscopy(ATR-IR) and Micro X-ray Fluorescence Spectroscopy (Micro XRF). A total of 48 different automotive refinish paints from 6 brands were collected. The organic components and main additives in these paints were qualitatively and semi quantitatively analyzed using ATR-IR, while the types and relative concentrations of inorganic elements were analyzed using XRF. The results of ATR-IR analysis showed that the main film-forming substances of the refinish samples were acrylic resin, alkyd resin and styrene-modified acrylic resin, and the colorants and fillers were titanium dioxide, red powder and toluidine red, etc. The Micro XRF results showed that one to seven different elements could be detected in the samples.By combining the results from both techniques, the samples could be effectively differentiated. This study provides an efficient and reliable technical approach for the comparative examination and traceability analysis of paint evidence in vehicle-related cases, as well as methodological references and data support for related forensic identification.