The research was conducted in natural forests producers Management Area «The Guásimas», in the municipality of Buey Arriba Granma province, in order to assess their state of degradation. 13 plots of 500 m2 were erected under a stratified sampling in which dasometric parameters (diameter and height) were determined, it worked with the indicators: behavior diameter classes and spatial analysis through geomatics techniques. The degradation of forest stands 7 and 10 is evidenced by the absence of economic trees in diameter classes better represented. Overharvesting, free grazing, selective exploitation of commercial tree species quality, logging, shifting cultivation, part of the culture of conuco as the main factors of degradation in the studied stands.