Abstract: The vehicle security system contains an image recorder module, a navigation and positioning module, a storage module, at least a security and surveillance module, and a central processing unit. The image recorder module captures at least a target vehicle's image. The navigation and positioning module produces a location coordinate. The storage module stores an electronic map. The security and surveillance module performs identification to the image. The central processing unit receives the image and then produces and stores at least an identification parameter in the storage module. The security and surveillance module then determines if the identification parameter satisfies a preset alarm condition. If the preset alarm condition is satisfied, a warning signal is produced and delivered to the central processing unit which, according to the location coordinate and the electronic map, produces navigation guidance and warning message.