2008 年擁有158 年歷史的美國投資銀行，雷曼兄弟控股公司( Lehman Brothers Holdings Inc. )的破產，掀起全球性的金融風暴，進而促使全球經濟同時性大衰退。 曾經是美國、甚至全球最大的企業的通用汽車也蒙受嚴重波及，而宣告破產重整。 百年歷史的GM 公司的倒閉，使得『企業規模越大，越不會倒閉』的傳統觀念破滅 了！根據統計，一般企業的壽命，約在30 年，而世界上仍有許多維繫超過百年甚至 更久遠的企業。促使那些擁有百年歷史的企業，永續經營特質是什麼? 回顧1990 年，普拉哈(C.K. Prahalad) 和蓋瑞‧哈默爾 (Gary Hamel) 於「哈佛商 業評論」上發表了企業核心競爭力（Core Competence）模型的論文以及唐納．薩 爾 (Donald N. Sull) (2003) 在「成功不墜」所闡述企業永續經營模型。還有，日本 京都大學經濟學研究所的末松千尋教授於2002 年提出京都企業經營模式研究論 述。三者構成本論文研究的理論模型基礎架構。藉由NEC 的個案，以質化個案研究 的方式，對照這個模型架構，探討NEC 公司永續經營的特質，印證本理論架構基礎 的實用性與完整性。研究成果將可提供國內企業，邁向國際化、全球化、永續經營 上策略思考之參考。 本研究從NEC 個案中獲得企業永續經營準則、永續成功經營模式為： 一、 擬訂企業策略發展意圖，建構企業願景。 二、 藉由不斷創新，建構企業核心競爭能力。 三、 認識企業存在的意義，重視顧客滿意。 四、 建立開放平台，與供應商的水平分工。 五、 隨著經營環境變遷，勇於適時變革。 關鍵字：永續經營特質，企業核心競爭力，企業經營模式，成功經營模式 / A 158- year-old firm, the 4th largest investment bank in the USA, Lehman Brothers Holdings Inc. announced its bankruptcy in 2008.Rapidly stirred up a global financial credit crisis and became to a worldwide economic recession concurrently. The ever being biggest company in the USA and even in the world, General Motors Corporation was engulfed seriously and finally also sank into bankruptcy protection by the economic recession. Even having hundred years history company like GM Corp. was forced to reorganize by bankruptcy protection. The traditional concept, 「The larger of the scale of a company the less possibilty of the company will collapse」,was ruined！According to some statistics a company can last for about 30 years for average. But there are still many firms lasting for more than hundred years in the world. What is sustainable managerial essence of those firms? Let us review their theses of core compentence of the corporation in the article of Harvard Business Review in 1990 by Mr. C.K. Prahalad and Mr. Gary Hamel. and the theses of company`s sustainable managerial model in the book of「Revival of the Fittest」in 2003 by Mr. Donald N. Sull. Also let us review the theses of 「Kyo-siki strategic business model」in 2002 by Mr. Chihiro Suematsu, Professor of Kyoto University Graduate School of Economics. These three above expounding form the basic model of theory of this research. By the case study of NEC Corporation, taking antithesis of these expounding, a case study of qualitative research oriented, tries to find sustainable managerial essence of NEC and to prove the practicality and the completeness of the basic model of theory of this research. The research thesis is trying to offer some strategic references to the company in Taiwan during creating its sustainable managerial essence for company on the way of internationalization and globalization of company. From this research of NEC case study it has found some conclusions about company`s sustainable managerial priceples or company`s sustainable successful business model as the followings： 1. Implementing strategic intents and setting up visions for the company. 2. Building core competencies for the company by constant innovations. 3. Realizing the meanings of company`s existence and taking customer satisfaction as the first priority. 4. Constructting an open platforms for business collateral integration with vendors and partners. 5. Being brave in timly transfoming for the company fitting changes of the business environment. Key Words：sustainable managerial essence，core competence，managerial model，sustainable successful business model