This paper is to find out and analyse the factors of customer satisfaction as the critical success factors of internet banking. The research model with the factors influencing customer satisfaction is suggested. The result of this research are summarized as follows: First, perceived easy of use, perceived usefulness, perceived safety, and perceived responsibility have significantly positive influence on customer satisfaction. Second, customer satisfaction has significantly positive influence on intention of reuse and canvass. These research findings suggest the clue about making internet banking successful.