The aim of diploma thesis is an assessment of the change in the structure of the forest, which is currently in the final phase of the reconstruction according to the selective forest structure due to the influence of the selective logging and the influence of autoreduction processes. The subject of the analysis is a series of three permanent research areas /TVP/. TVP 1 and 2 have a type of structure close to selection, TVP 3 represents a control area where the selective logging was not carried out for 15 years and was left to natural development. The repertory for TVP 1 and 2 is higher than the optimal repertory for the group of forest types Fagetum pauper nst. established for this type of selective forest. The diploma thesis is focused on assessing the impact of the selective logging which was carried out in March 2020. The structure of the selective forest is characterized by height structure, thickness structure, circular base structure, repertory, regeneration processes and use of production space by tree crowns of individual woods. The individual TVPs are shown in more detail via visualization program (stand visualization system). The subject of the analysis is the dependence of the crown volume on the trunk volume. The position and degree of variability of selected dendrometric features of the main beech wood were also assessed in the research. The analysis of selected dendrometric and production characteristics confirmed that the selective logging partially modified the structure of the selective forest and at the same time reduced the repertory. Nevertheless, the repertory on individual TVPs are higher than the model and therefore, the intervention will have to be repeated relatively quickly. Regeneration processes are partly smooth and take place in clusters. A failure of natural regeneration was found on TVP 3, which was left for 15 years without the implementation of the selective logging. On TVP 1 and 2, a more significant shift of natural rejuvenation to a category higher than 20 cm was recorded. In the future /within three years/, a selection logging should be carried out on both permanent research areas 1 and 2 with an orientation to the upper layer of the forest. The aim of the selective logging will be to reduce the stand repertory, to remove trees which exceed the target thickness on the TVP with the subsequent release of the crowns of quality trees located in the upper layer.