The invention discloses an automobile detection system and method, relating to the technical field of automobile detection. The system comprises a detection front end, a detection host, and a server, wherein the detection front end is used for detecting a detected vehicle; the detection host is used for receiving the detection parameter setting of a legal user, transmitting a detection command to the detection front end, receiving the detection data, assessing damage, generating a detection report, and displaying, storing and transmitting the detection data and the detection report to the server; and the server is used for verifying the legality of the user, assessing the damage of the detected vehicle, and storing the legal user information, the detection data and the detection report. Through the adoption of the system and the method, provided by the invention, a plurality of detection hosts can access the server to acquire the corresponding assessment information of secondhand cars for trading, so that the assessment precision of the secondhand cars is improved for trading, and a trading service for secondhand cars is provided fast and conveniently; and furthermore, a more convenient detection means can be provided, the detection flow is specified, and the detection efficiency for the secondhand cars is greatly increased.