Abstract: In view of the limitation of the existing vehicle simulators, the problems were analyzed in this paper, including the usability test environment for the test of automobile human machine interface (HMI), the usability test methods of the automobile HMI on a driving simulator. Taking advantage of the current development of the intelligent and network-linked function of the car, a car bench on a smart cockpit was designed and built to achieve the general intelligent vehicle driving simulation, so as to make the HMI testing process more refined, and verify the feasibility and validity of the design method. And then, the LDW (lane departure warning) function of the advanced driving assistance system was set as an example to analyze the application scenario of LDW. Finally, the HMI design was applied to a driving simulator for usability testing, intending to bring some inspiration to the future HMI test methods.