自1955年Ray Kroc創立麥當勞以來，以經營家庭市場為麥當勞的基礎，並且藉由與家庭顧客的互動培養長期牢固的忠誠度，台灣麥當勞自1984年成立以來，深耕台灣家庭市場，創下許多餐飲業的首創，不但打下市佔率，也打下消費者心佔率，成為父母及小孩的第一選擇。 由於麥當勞全球迅速擴張導致單店營業獲利下降，因此麥當勞重新思考品牌重整，將品牌溝通重心轉向年輕族群，全球品牌再造計畫”我就喜歡”於2003年底全球同步展開，顧客群重心的調整加上大環境反速食的浪潮，考驗對家庭市場的經營方式及應變能力。 本研究以實務個案分析，採用質化研究，針對台灣麥當勞高階主管經營家庭市場經驗訪談，輔以理論之架構，予以逐項分析比較及歸納。家庭市場的交換價值影響母品牌的資產，母品牌的經營策略改變也影響家庭市場長久建立的資產，其研究目的有二：第一、期了解麥當勞運用家庭市場行銷方案（Family Program)，建立家庭市場地位並且將資產累積回饋母品牌。第二、研究麥當勞品牌策略轉向影響到經營多年的家庭市場，麥當勞該採取的因應策略。 麥當勞在強化家庭市場行銷活動4C的同時，也增加了母品牌強化4C的機會，轉嫁成為母品牌的資產；當策略焦點轉移，資源重新配置，品牌的4C將不完全是由家庭市場行銷活動4C來建立或維繫，也影響到家庭市場行銷活動傳遞產品及服務本身的4C，因此回頭檢視家庭市場行銷活動的4C時，發現家庭市場行銷活動4C出現一些缺口，而這些缺口，反而又回頭影響了母品牌的4C。 因此，在思考品牌的4C時必須採取根本解，而非症狀解，此外，當核心能力作焦點轉移時，需要重新思考或調整原有核心能力的續航力及基盤事業，最後，如何運用競爭優勢與社會利益共享，創造社會影響力，發揮最大共存效益。 / Since Ray Kroc built up McDonald’s in 1955, Family has been the core foundation of McDonald’s business. McDonald’s has established true loyalty with family customers by engaging and interacting with them at every touch point. McDonald’s Taiwan was established in 1984. Since then, it has been cultivating the family market to become the first choice of parents and kids. It occupies not only the top position of market share but also mindshare. Because of the rapid expansion of McDonald’s business worldwide, McDonald’s is confronting the first ever decrease of unit store profit. In reaction to this downturn, McDonald’s decided to slow expansion speed and take a step back to re-think and re-position its’ brand. McDonald’s launched the “i’m lovin’ it” brand campaign globally. Their brand communication focus shifted to Young Adults. Because of this shift and the growing anti-fast food trend, McDonald’s family marketing has faced its biggest challenge ever. This case study adopted qualitative research, interviewed top management in McDonald’s Taiwan and supported by theoretical structure to analyze this case. The exchanging value of family market influenced the equity of mother brand. Changing the position of the mother brand has also affected the value delivery of family market. The main objectives of this thesis are firstly to understand how McDonald’s has utilized family marketing to build equity of family market and be beneficial to the mother brand. Secondly, how the change of mother brand positioning affected the equity of family marketing building. Finally, what strategies McDonald’s should use to tackle these critical issues. While McDonald’s enhanced the 4C value of family marketing, it also added the 4C value of mother brand. 4C value of family market would transfer and become the equity of mother brand. However, when the brand focus changed, corporate had to re-allocate resources. At this point, the 4C value of mother brand was not totally constituted by 4C value of family market. That is to say, family marketing shared less resources and delivered less 4C value to family market. The incomplete 4C value of family marketing will go back to affect the 4C value of mother brand in the end. To manage a brand, marketers should resolve the root causes instead of just alleviating the symptoms. To deal with root causes, can corporate leave the side effects away. Besides, when corporate shifts the core competence to another area, they should re-consider resource allocation and migrate the core competence to better fit the new challenges. It is to secure the foundation of the business and sustainability of the corporation. Last but not the least, to incorporate social possibilities in corporate strategies will create the competitive advantage and have a positive impact on our society. Holding a shared vision with the society, working as a team with other partners, and elaborating the best synergy of human kind - that is how corporate social responsibilities will work in the future.