Abstract: A vehicle abnormal sound identification system includes a database and at least one vehicle sound processing system. The database stores a vehicle sound comparison file having abnormal sound data and normal sound data of different parts of a vehicle under different conditions. Each processing system includes a plurality of sound sensors, a vehicle computer and a storage device disposed in the vehicle. The plurality of sound sensors receives sound generated from different parts of the car. The vehicle computer processes the sound collected by the plurality of sound sensors to generate a plurality of sound character data, and uploads the sound character data to the database. The database updates the comparison file according to the sound character data.