With the transformation of the industrial structure environment and the coming knowledge economy era, the demand of enterprise for professional human resource is steadily on the increase, which makes the enterprise have diversified needs on manpower dispatch. In regard to the application of manpower dispatching, it has been transformed from the early labor force of blue-collar employees or the administrative personnel of white-collar staff in the basic level to the roles of skilled professionals or professional managers. There are two objectives in this research. The first objective is to probe into the current situation of professional dispatching, and the second is to probe into the management mechanism of professional dispatching in Taiwan, which are probed in the case study method on the basis of its research subject, interviewing the third dispatched party, and the interview details will be concluded and analyzed. It is discovered in this research that the dispatch triplicities think that the professional dispatch will become the development direction of manpower dispatch in the future. It is thought that dispatching agency should pick up the speed of recruitment and improve the professional degree in the practice of manpower dispatch. The ready-dispatch enterprise plays the role of reducing the otherness of professional dispatched personnel, the service charge of reasonably assessing the manpower dispatch, and the payment of professional dispatched personnel. And the dispatched personnel hope to strengthen the basis of mutual trust and improve the sense of job achievements. There are still a lot of challenges to meet the requirement of the dispatch triplicities. It is the common goal to find how to strengthen trilateral interaction and make the performance of professional live up to the standard of enterprise, which are the concerted efforts of dispatch triplicities.