The major of this study is to examine human resource professionals¡¦ competencies in car manufacturing industry and identify their affectability.This study perceived 20 competencies in four domains: strategic human resource expertise, general human resource functional expertise, self-development and support & service for employee to examine their importance through the Analytical Hierarchy Process, AHP.The results of this study indicate that the HRM expert of car manufacturing industry weighting the strategic human resource expertise with 51.1% related to the other three domains, general human resource functional expertise with 21.8%, self-development 10.5% and weighting support & service for employee for 16.7%.The result emphasizes the importance of strategic human resource expertise and the general human resource functional expertise follows. The HRM competencies in Taiwan are still ranged in training and development of employee, usage of HRM information system, performance review and compensations & benefits. But the experts reach the common consensus that the strategic human resource expertise will be the most important competency for the requirement as the circumstance changing.