1 Development, National Security and Brazilian Foreign Policy (1945 – 1989) Andréa Benetti Carvalho de Oliveira 1 Ariane de Oliveira Saraiva 2 Ludmila Andrzejewski Culpi 3 Abstract- The hypothesis of this study is that the Development and National Security were seen in Brazilian Foreign Policy in the period 1945 to 1989, and tied in a bundle, and a national defense product that result from the development. The research is divided into four parts, in which (i) is contextualized in time, space and historically the object of research, (ii) explains how he was led to Brazilian foreign policy in the area of security and defense, (iii) explains how it was carried Brazilian foreign policy in national development and, finally, (iv) verifies that th working hypothesis can be confirmed using the information gathered to understand the combination of National Defence to development of the country. Keyword: Security, Deveolpment, Brazilian Foreign Policy, 1945-1989. INTRODUCTION This article has as it theme the Development and National Security in the Brazilian Foreign Policy from 1945 to 1989. The question we seek to answer is how the Brazilian foreign policy in the security during the period in question was used as a strategy to achieve economic development The main objective of this research is to analyze the Brazilian foreign policy in the areas of security, defense and development between the years 1945 and 1989. Another goal is to understand the reasons for the prioritization of policy in the sphere ofsecurity for the achievement of national development in the period of analysis. 1 Master Student of Political Science on Universidade Federal do Paraná (UFPR), and researcher of the Research Group of International Relationship, also in UFPR. Teachs International Law on Unicuritiba. E-mail: andreab@brturbo.com.br. 2 Master Student of Political Science on Universidade Federal do Paraná (UFPR), and researcher of the Research Group of International Relationship, also in UFPR.E-mail: arianesaraiva@gmail.com. 3 Master in Political Science on Universidade Federal do Paraná (UFPR), and researcher of the Research Group of International Relationship, also in UFPR. Teachs International Relationship on FACINTER. E-mail:. ludi_culpi@yahoo.com.br.