區段徵收為目前政府大規模進行土地整體開發，促進都市發展，以及無償取得公共設施用地的重要舉措之一，為一種具有高度自償性之土地開發事業。由於區段徵收需要投入大量的資金與人力，在政府財政困窘及國內不動產市場自民國81 年以來，長期處於不景氣之故，其非但無法達成原先設定之有效減低公共支出之目的，反而需要額外編列預算以支應財務缺口。爰此，造成縣市政府往往視區段徵收為畏途，但礙於相關政策規範及都市發展須盡速取得必要之公共設施用地，而不得不予執行，從而導致惡性循環，因此，如何解決區段徵收財務問題，乃成為政府必須面對的最大困境與挑戰。 在政府財政狀態日益惡化，短期內又無法籌措區段徵收開發過程中龐大的資金需求，再加上地方專業人力不足之困境下，使得區段徵收之辦理型態有所演變，部分地方縣（市）政府遂逐步引進民間資源與活力（即BT模式），朝向由民間機構自行籌措資金並由該機構專業人員負責規劃與執行開發工作，政府從旁提供必要之行政協助。此外，開發所需總費用均先由民間機構墊付，而政府再以剩餘可建築土地來償付費用，藉此創新開發模式，以有效解決區段徵收有關資金籌措及開發後土地去化等至為關鍵之癥結問題。 然而BT模式在實務執行過程時，仍存在著法令、政策制定及實施方式等相關爭議，以致於無法有效大量推廣實施，本文藉由研究相關法令、文獻記載、分析目前實施案例、並透過訪談專家學者及整理相關問題等，說明區段徵收業務在走向政府委託民間機構、引進民間資源辦理區段徵收BT開發模式時，所需面對與管理之委託-代理關係，藉由代理理論，探討區段徵收實務執行層面中，可行的解決措施（包括誘因與監督機制），並建議區段徵收應與時俱進地檢討與修正相關配套措施，以利此項善用民間資源與活力，並具有突破性的土地開發委外機制能夠更臻完備，並可作為後續土地整體開發學術研究之重要參考。 綜合本研究之結論與建議，謹分述如次： 一、結論 （一）區段徵收機制基於政策、民意與制度之可行性，可以作階段性創新改革。 （二）現行區段徵收委外機制相關法制，尚欠完備。 （三）區段徵收委外辦理機制，應同時配套建構監控制度。 （四）區段徵收委外過程，應運用誘因機制，以避免代理問題產生。 （五）區段徵收BT開發模式，應可進一步強化學術研究與應用探討。 二、建議 （一）限期檢討修正區段徵收BT開發模式法制化工作。 （二）由中央與地方成立專案小組，全力協助BT得標廠商。 （三）加強BT開發模式之宣導，建構良好的溝通協調機制。 （四）根據現有兩案例開發結果，審慎評估策訂推廣實施計畫。 / Zone expropriation is presently the large-scale integrated land development carried out by the government to promote urban development. Acquiring land for public facilities without compensation is also an important measure to have high self-liquidation of land development enterprise. Because zone expropriation needs to invest in a great deal of funds and manpower, the government finance and the domestic real estate market were in a long-term depression from 1981 until 1992. Not only unable to reach the targeted profit margin to reduce the public expenses, additional budget is needed to deal with financial gap. Therefore, it makes the county and city government often look at zone expropriation as a dangerous choice to take. But hindrance related to policy standardization and urban development must acquire the necessary land for public facilities as soon as possible because there's no choice but to implement it. As a result, it leads to a vicious circle. Therefore, the government needs to face the greatest dilemma and challenge on how to settle the zone expropriation financial problems. The financial status of the government is worsening day by day. Within a short time the government was unable to raise funds for the huge financial requirement of the zone expropriation. In addition, professional manpower is also a dilemma, causing the handling pattern of zone expropriation to evolve to some extent. Partially the local county and city government gradually brings in non-government resources and vitality (private participation-BT mode). Non-government organizations voluntarily raise funds and professionals in private sectors manage the plans and implementation, while the government provides necessary administrative assistance. In addition, the development necessary for the total costs is paid first by the non-government organization, and the government excess land will be liquidated, thereby creating modes in effect of settling the zone expropriation's fund raising and developed land key problems. However in the implementation of the BT mode process, the decrees, policymaking and implementation methodology related to disputes are still kept. Because of the incapability to take effect the large number of widespread implementation, this writing discuss about the laws, research about decrees, document records, analysis of present case studies, and interviews of professional scholars and arrangements related to the problems. Zone expropriation business is illustrated in moving towards the government's entrusting of non-government organizations. The introduction of non-government resources to handle the zone expropriation BT development method is necessary for facing with the management of principal-agent relationship. By means of principal-agent theory, probing into the implementation dimension, feasible resolutions (including incentive and monitoring mechanism), and recommending the steady advancement of zone expropriation to review and amend about the formation of a complete set of measures, these are all for making good use of non-government resources and vitality, as well as to have a break through in the land development outsourcing mechanism to make them more perfect, and may make a follow-up for the land integrated development academic study of important references. Summary, Conclusion and Recommendation: 1. Conclusions: (1)Gradual improvements can be made on the zone expropriation mechanism based on policy, public opinion and system feasibility. (2)The legal system regarding the current zone expropriation mechanism is still incomplete. The external committee handling zone expropriation should simultaneously form a complete construction monitoring system. (3)The external committee handling zone expropriation should utilize a financial incentive mechanism to avoid any problems. (4)A zone expropriation based on the BT model should go further in strengthening academic research and application 2. Recommendations: (1)Establish a deadline for reviewing the legal work for zone expropriation in the BT development model. (2)Allow the national and local relevant groups to fully assist the winning bidder for the BT project. (3)Strengthen guidance for the BT development model; construct a good communication mechanism. (4)Based on the development results of the above case studies, carefully appraise the presented implementation plan . Keywords: Zone Expropriation、Private Participation(BT Mode)、Principal-Agent Theory、Incentive Mechanism