The invention discloses an automatic test system based on Linux vehicle-mounted software, and belongs to the field of software systems. The system comprises a Gerrit server, a Yocto server and a Jenkins server, wherein the Gerrit server is used for reviewing codes submitted by development engineers, the Yocto server is used for automatically building corresponding modules of the codes reviewed bythe Gerrit server and conducting compiling, the Gerrit server and the Yocto server are integrated to the Jenkins server, the Jenkins server is used for automatically monitoring whether or not codes and patches which are submitted exist in the Gerrit server, inspecting the submitted codes and patches by invoking a static code inspection tool, and outputting an inspection result to the Yocto server;meanwhile, the Jenkins server conducts automatic test on a result compiled by the Yocto server. According to the system, the product quality and the test efficiency of current vehicle-mounted information and entertainment multimedia are improved, and the system can be used in development of vehicle-mounted software.