The internationalization may represent a possibility of insertion in the global context, a survival strategy and a learning process. The meat sector companies are internationalizing and seeking to overcome the phytosanitary and commercials barriers to, thus, pass to enjoy the facilities and market potentialities. Thereby, the present research aimed to analyze the internationalization process of Brazilian meat sector companies, specifically the experience of Sadia S.A., comparing with the economic theory of the Eclectic Paradigm (Dunning, 1988) and the theory behavioral of the Uppsala School (Johanson and Vahlne, 1977). Has been realized a literature search, of qualitative and exploratory nature. Specifically aimed to: (i) identify the input modes of Sadia S.A. abroad; (ii) verify the main reasons for internationalization in certain countries; and, (iii) verify the adherence of the company's internationalization process to the theories of internationalization. Analyzing the acting of Sadia S.A. on the world market, it is noted that it's based on a gradual process that envisions the reach and exploration of market shares that contribute to its growth, that under the influence and with similarities to the model of the Uppsala School and the precepts of the economic theory of Eclectic Paradigm.