Since the government legalized the establishment of private financial institution, a surge of branch amount occurred and attracted great foreign financial industry investment which leads local banking industry into a great competence stage. Therefore, there's been a urgent need for bankers to figure out ways to attract customers and maintain profit. Along with the universal Wi-Fi environment in Taiwan, online banking has become one of the most important financial service for bankers. This research aims to discuss how online banking trust effects customers online banking use intention, and how bankers build customers' trust toward online banking.