The main object of this Diploma thesis was analyze game management of deer population in J XVIII Levočské pohorie area in connection with density of Wolf and Lynx during 1997 – 2017 period. After introduction of interest area, in problematics part, we analyzed biology and ethology of deer, as well as of wolf and lynx. In the results chapter, there we analyzed connection between deer density and wolf and lynx density in interest area. Subsequently we used recalculation method to forecast real density of deer population and wolf and lynx populations as well in interest area. During the analysis of official game management statistics and comparing them with our recalculations we found out that many of official game management statistics are incorrect, mainly because of wrong methodics of population counting. The last, but not least we present possible solutions of the problem, by change of population counting methodics and by increasing state servis controls.