Abstract : The main purpose of this thesis is to understand the market of Conilon variety of coffee as a process of social construction, in the state of Espirito Santo, taking into account its historical development and the impacts on rural society. Such a market has evolved by the actions of social actors, institutions, also reflecting changes in the dynamics of social relations that shaped the history of coffee in that particular space, causing visible repercussions on family faming, even nowadays. As conceptual framework, markets are seen as social constructions that transform those as an economic mechanism embodied in social life. The expansion of production and trade of Conilon coffee is thus analyzed through a comparison between North and South Territories of Espírito Santo, based on a historical background and the economic structure emerged after the process of coffee eradication that took place in the 1970s. Therefore, oriented by the concepts of market as social construction, the history of coffee is disclosed, focusing on its evolution in those territories. Actions of social actors and their possibilities within the prevailing institutional framework are highlighted in this analysis as to show their crucial role in promoting Conilon coffee as an important crop for the development and for the survival of family farming, in terms of both land use and income generation. As a major consequence, this socioeconomic dynamics has exerted a decisive influence on the implementation of public policies.