隨著網際網路的興起及電子商務技術的發展，且在組織追求更多的經營效益下，電子化採購的採購模式，改變了企業的採購流程，除了降低採購金額也提升採購效益，帶動企業的競爭力。然而，電子採購的實際發展，卻未如預期般的大幅成長。有鑑於此，本研究深入去探討使用者抵制電子採購之因素，且別於一般研究常探討的創新採用理論，並且以Ram（1989）提出的創新抵制（Innovation Resistance）為出發點，在原本使用者導向的創新抵制構面中加入了組織層面的影響因素，讓創新抵制架構更趨完整，用以探討企業採購者抵制電子採購之來源因素。

研究結果發現：產品價值、習慣衝突、認知風險、傳統信念，對於企業採購者抵制電子採購具有顯著的解釋力；而新加入的組織正式化程度與組織集中化程度並不具有顯著解釋力，但其中組織的規模為具負向顯著。最後，本研究根據研究結果，推導出對於未來企業在推動電子化採購時可能會面臨的障礙並提出因應之道，期可消弭或降低企業使用者所面臨的創新抵制，加速電子採購使用的擴散與發展。

As the rising and flourishing of Internet and e-commerce technology, the transactional paradigms under which business-to-business marketers operate start to transform. Furthermore, to take advantage of the operational efficiencies and effectiveness, Business-to-business marketers emerge from utilizing the internet in transactions. Hence, outperforming firms that utilize traditional transactional process have not only cut down their purchasing cost and are benefit from the efficiency, but increase competitive advantage. However, the development of e-procurement has not been going as smoothly as expect.
To understand the phenomenon mentioned above, this research conducts the view of Innovation Resistance, Ram 1989, to probe into cause of why purchasers resist the innovation of e-Procurement. Moreover, to have the Innovation Resistance model complete to explore the reasons why purchasers resist the innovation of e-Procurement, this research adds organization effect to the model.

After conduction a sampling survey, it is found that the value barrier, usage barrier, image barrier, perceived risk and tradition barrier are significantly affect mobile customers to resist the adoption of e-Procurement. In addition, centralization and formalization of an organization has no significant association with innovation resistance, size of organization has negative significant. Finally, to provide research suggestions for future studies, the research conducts the results mentioned above to discuss managerial implications of company and hope to mitigate the resistance when companies adopt innovation for their purchasing process.

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