Nowdays vehicles put increasing demands on the driver’s ability to process information, operate functions and simultaneous concentrate on driving.1) In this paper we propose a new multi functional steering wheel switch for HVAC, Audio, Criuse control, Navigation and Vehicles other’s functions. The steering wheel’s left side has main menu (HVAC, Audio, Criuse control, Navigation and Vehicles other’s function) and the other side has main menu’s sub menu that control to thumb gesture. This new switch is optimize the control pattern and button number of sub menu’s switch. And then this new switch includes three type’s devices such as push button, touchpad and touch LCD (such as i-phone and smart phone), in addion to feedback in which the dirver can recognize the switch’s current mode of operation include the use of audio, tactile and visual displays. Results from this paper showed that significant improvement in terms of driver distraction and work load reduction could be achieved with the new concept of multi-function steering wheel (less driver distraction and reduced workload). We have a plan to study about simulation of real car on the road at next year.