The objective of this article was to analyze the managerial styles in coffee farmers of two regions in Minas Gerais State, Brazil (Sul and Zona da Mata), and the difficulties which can be compromising the administrative effectiveness. Primary data were collected from forms applied to 56 coffee farmers, in the harvest period 2003/2004. To analyze the relation between the dominant managerial styles and the reached economic and technical performances in the activity, the analysis of simple correlation was used (coefficient of Pearson). Regressions were estimated to indicate as the situational variables had intervened in the styles. Among the main results it is important to point out that the producers, in general, presented as dominant managerial style 9,9, which represents the versatile and intent manager to the changes of the environment. The situational variables intervened, significantly, in the managerial styles in both regions, of differentiated form. Also positive correlations between the dominant managerial styles were observed and the physical production and total gross income in the production of coffee in the Zone of Mata region. This can be an indication that the versatile style is related to a good economic and technical performance in the activity. The results of this research can be considered reference to reach managerial effectiveness in the production of coffee in the studied regions.