The topic of the master thesis is focused on the analysis of the structure and regeneration processes in mixed stands with a predominance of beech species. These are located on the site of Pro Silva Kráľovčík belonging to the forest complex Lesy Hanušovce, which was declared in 2006. In these stands, restoration interventions are carried out mainly by individual selection according with the principles of close-to-nature forest management. The aim of the thesis is to evaluate the structure and regeneration processes on stands 129a, 132, 133 and 137. A series of experimental plots (one per hectare) were established in the forest stands, which consisted of two concentric circles and one square sub-area. In these plots, the thicknesses of the individuals of the maternal forest stand, the thicknesses of the individuals of the sapling were measured and the numbers of individuals of the natural regeneration were determined according to the height categories. Subsequently, these values were statistically evaluated. From the measured values, the parameters for the maternal stand were subsequently calculated: number of individuals, basal area, stand stock; for natural regeneration: number of individuals by height categories. The number of individuals in the stands was as follows: 129a – 243 pcs. ha-1, 132 – 290 pcs. ha-1, 133 – 347 pcs. ha-1, 137 – 330 pcs. h -1. Stand stock ranged from 350 to 570 m3. h-1. Based on these parameters, the middle layer in forest stands lacks. Overall it can be assessed as a favorably developing structure similar to selection forest structure. Also the regeneration processes are at a good level and in all stands there is a strong presumption of their strong autoreduction during their transfer to higher thickness levels. The level of damage to natural regeneration by ratites was also assessed in the stands, which in the case of the least represented tree species reached the value of 70 – 80 %.