本研究針對國內頗受爭議的人力派遣進行制度安排及運作的探討，一方面提升我們對人力派遣制度的瞭解，另一方面則藉以瞭解人力派遣如何重塑僱傭關係與企業人力運用。鑑於國內相關研究及文獻的缺乏，故本研究以美國相關產業，特別是臨時性支援服務業之研究及制度安排為比較基礎，對國內人力派遣業僱傭關係的制度安排、發展過程、未來展望，以及人力資源管理相關議題作深入探討。本研究屬探索性研究，針對國內實際從事人力派遣的業者進行深度訪談。我們由分析中發現，人力派遣業中關於僱傭關係的種種制度安排與傳統僱傭關係迥異。尤其是由人力派遣業者、使用公司與派遣員工之間所構成的三角關係造成雇主認定上的混淆，派遣業者策略性地區分常僱型與登錄型派遣勞動導致僱傭關係的不穩定性，以及派遣業者的彈性化人力資源管理措施造成對派遣人力的人力資本投資不足等，均是值得我們重視的演變。 We study institutional arrangements and practices of the controversial dispatched work business in Taiwan. On the one hand, we are looking for a better understanding of this work arrangement; on the other hand, we would like to understand how this work arrangement has reshaped the employment relations and human resource management within organizations. Due to lack of relevant literature and research, we use the temporary help service of the U.S.A. as the basis of comparison, to study the institutional arrangements, process of development, future prospect, and issues related to employment relations of this work arrangement. This is an exploratory research and is based on interviews with agents of this industry. We find that institutional arrangements related to employment relations in this industry are different from those under traditional employment relations. We are particularly interested in some developments: first, ambiguity in identity of employer status caused by the triangular relationship between the staffing agent, the client company and the dispatching labor force; second, insecurity of employment relationship due to the agent’s strategy in dividing its workforce into “constant hire” and “registered temp”; third, under-investment in dispatched labor’s human capital resulting from staffing agents’ flexible human resource management practices.