This dissertation addresses the issue of public policies for rural development in Brazil, more specifically those aimed at the family farm. The Program for Food Acquisition (PAA) was elected, by integrating on a movel/innovative agricultural and food security. Moreover, public policy research relating to family agriculture and food security and nutrition are recent. At first, the adoption of a theoretical difficulties presented in this paper, for public policy are multidisciplinary fields which require the contribution of sociology, political science and economics. But over the course of its design, it was found that the theory gradually emerged from the analysis and interpretation of data. Outlined to contextualize the construction of the program in the plateau region north of the state of Santa Catarina with the role of the Regional Agricultural Cooperative of small producers in Mafra (COOARPA). From there, it was aimed to analyze some socioeconomic effects of the program, such as: i) agricultural prices and farmer income, ii) farmers’ organizations and iii) quality of products offered. The methodology was based initially on exploratory research with the executing agency for the program in Santa Catarina, that is, the Regional Superintendent of the National Supply Company (CONAB) being pointed to as a reference COOARPA pioneered the deployment of PAA in the region. Along with this organization, was built the database consists of the following information: number of farmers benefited suppliers, purchase amount and number of entities socioassistenciais benefited crops during the fiscal years 2004 a 2007. As a primary information was obtained through a semi-structured questionnaire and interview face to face with the executing agencies of the program as well as local organizations involved. The main results were the increase in the values of acquisitions, the number of farmers and suppliers in the number of entities socioassistenciais met. Furthermore, there was positive effect of the program for the associations whose stated reference price was above the market is reflected in income, employment and food supply. Organizations of farmers played an important role in the marketing, promotion participation of those in the local economy. The food supplied to  the socioassistenciais (in quantity and variety of items), showed positive aspects related to nutritional quality. The keynote unanimous of the continuity of the PAA and the identification with the communities highlight the debate: government policy and state policy. In addition, evidences the right to food as effective object of public policy.