本研究以2002年至2012年已開發國家食品產業跨國購併案為樣本，以事件研究法，比較已開發國家食品產業跨國購併已開發國家及開發中國家企業的購併宣告效果，去看在跨國購併的文獻議題上和實證結果是否相符。並以雀巢集團為收購公司之案例，比較其進軍已開發國家(美國惠氏營養品)及開發中國家(中國徐福記)的策略及收購後營運與財務績效，可否套用於產業研究結果，希望為後續食品產業購併提供研究參考。 本研究有以下三點發現：1.食品產業自已開發國家購併已開發國家對收購公司的股價宣告效果，較購併開發中國家對收購公司的股價宣告效果佳。2.已開發國家之食品產業收購與該產業相關性越高的企業，對其收購公司的股價宣告效果並無重大顯著之影響。3.無法將雀巢集團收購惠氏營養品之個案套用於產業研究結果，收購徐福記之個案則與實證結果相似，無正向顯著的宣告效果。此二個案皆著重搶攻新興國家市場，並以水平整合及策略互補方式，擴大市佔率及強化產品線，近五年之財務狀況，與同業相比有較佳之獲利表現，且繼續經營之價值。 已開發國家食品產業在選擇跨國購併對象時，可以已開發國家企業為主要收購對象，降低文化及地理距離帶來的資訊不對稱問題及取得策略性資產，投資人對其有較佳的預期，在選擇向前垂直整合策略時需留意，因零售通路需較大規模之經營整合，對於該市場需有更深入之了解，才適合投入至通路端。 / This paper treated cross-border Mergers and Acquisitions (M&A) cases of developed countries’ food industry over the period of 2002 to 2012 with event study. We compared the announcement effects of acquired companies following developed or developing countries M&A and to confirm that whether the empirical results are consistent with the literature. We used Nestle S.A. as acquiring company to compare its M&A’s strategies and performance when acquiring Wyeth Nutrition and Hsu Fu Chi. Hope to be the reference for the following food industry M&A research. The major research finding as follows. First, the announcement effects of developed countries’ food industry following developed countries M&A are better than developing countries M&A. Second, the results demonstrated that the announcement effect had no significant difference among different industrial relevance of target companies. Third, the case of Hsu Fu Chi acquisition is similar with the empirical results but Wyeth Nutrition acquisition cannot. Furthermore, both cases were focused on the emerging markets and complementary strategies. Developed countries’ food industry can chooses the developed countries’ firms as target companies to decrease asymmetric information which caused by cultural, economic and geographic distance and to acquire strategic assets. They also should have enough acquaintance of the markets before they invest in the channel.