摘要:The article of theoretical-empirical discusses the concept of efficiency in rural extension activities, with the intention of initially as the theme has been treated in the literature. The methodological procedures adopted for a bibliographic review in periodicals, dissertations and theses that discussed a theme between the years of 1987 to 2015. The results found in 18 papers point to a discussion that perpasses mainly by technical dimensions, associating the extensionist activity in the diffusion of Technologies and not increase productivity. In the meantime, it is proposed to present the final considerations of a proposal for a theoretical construct, which aims to broaden the concept of efficiency, approaching the economic dimension as a small part not methodological training process of assistance, in other dimensions are also fundamental for Strengthening And development of the extensive activities, thus relativizing his supposed neutral and a-historical character.