拜科技進步之賜，虛擬模擬技術對於未來事件的預測準確度越來越高，而近年來發展出來「數位工廠」即是其中一個典型的工廠應用，因為「數位工廠」可利用三維立體模擬技術來進行工廠製程之設計與開發，可於投資決策前事先瞭解製程與成本之關係，藉此降低企業經營風險。 決策品質對於企業非常重要，關鍵的因素在於正確資訊及經理人的經驗，而經驗判斷也必須基於資訊情報之前提上，也就是說正確及高品質的資訊情報可提升決策之品質，而「數位工廠」則可事先模擬工廠之佈局及流程，提前獲得未來製造的情報，故決策之品質也將因此而提升。 近來許多國內外知名汽車企業紛紛導入「數位工廠」來提升製造之效率，例如日本豐田、德國賓士集團、中華汽車等領先之企業，但導入「數位工廠」絕不只是購買虛擬模擬軟體或是技術即可達成，其中必定包含許多的流程整合及應用過程，這樣才能使預測技術與決策品質一致化。 本研究以個案研究方法，透過觀察分析與訪談的方式，針對目前台灣有導入「數位工廠」的公司進行實證研究，但因台灣導入此類系統之研究樣本較少，故本研究將參考國外之期刊及技術文件，並實地訪問中華汽車，藉此討論汽車產業導入「數位工廠」成功關鍵因素與效益。 【關鍵詞彙】 數位工廠。 / A Study of the Critical Success Factors and Benefits of Implementing the Digital Factory System in Automotive industry － Example of China Motor Company. Thanks to the advance of technology. Virtual simulation technology is getting more accurate prediction of future events. In the recent years, the digital factory is one of the typical plant applications, because the digital factory can use the three-dimensional simulation for plant design, layout, and build up. Manager can check the factory process and cost in virtual simulation environment before company make investment decisions. And they also can reduce the risk by use virtual prediction result. It’s very important for businesses decision making. The key factors for making the right decision are the correct information and the manager's experience. All judgments must be based on the premise of right information, because the right information will improve the quality of decision-making. Recently, many well-known automobile companies develop the digital factory system to improve their manufacturing efficiency, such as Toyota, Mercedes group in Germany, the China motor in Taiwan. But building the digital factory is not just to purchase the virtual simulation software. It will contain the process integration and application process in order to make the good prediction for high quality of decision-making In this study, I use the case study for analysis, interview and observing of China Motor Company. Because the study sample is too small in Taiwan, this study will refer to foreign of journals and technical documents. And I also use field study of China Motor Company for discuss the critical success factors and benefits of digital factory. Key words: digital factory.