Abstract
Writers are argued about "training a person to be excellent project manager". We become aware of "having a sense of professionalism" is most important. Under this understanding, we conclude that "sense of professionalism" of project manager consists two aspects. One is "core professional sense" which is similar to other profession. The other is "project management professional sense" which is characteristic of project manager. In this paper, we show "core professional sense" consists competency of leadership, negotiation, and communication. And "project management professional sense" come from discipline based on QCD and Risk management. Finally we suggest how to acquire "sense of professionalism" from view of mentoring.