In the last decade we have been witnesses of massive spruce forest die-back in Central Europe. The main causes are windstorms, hot summer weather and bark beetle infestation (Ips typographus L.). Mountain spruce forests in Slovakia are also affected. In our thesis we deal with the problem of natural spruce forest die-back, where we analyse the impact of forest die-back on changes rainfall-interception in the years 2016 – 2020. The research is carried out in the experimental plot Červenec in the Western Tatras (Carpathian Mts.) at an altitude of 1 420 m a.s.l.. The research area is covered with climax spruce forest with an average age of > 120 years, some of which died in August 2012 (dead forest I) and the other part in October 2017 (dead forest II). The measurement of throughfall precipitation we realize in two types of dead stands and in the living forest, in the central crown zone near the stem, in the dripping zone at crown periphery and in the canopy gap. Field measurements take place throughout the year in the growing season (end of May to the end of October) and in the non-vegetation period (end of October to the end of May) at approximately two-week intervals. In growing season in the dead stands and in the living stand, we evaluated the canopy interception, total interception and overland flow. During the non-vegetation period, in addition to the interception, we also analyzed snow depth, snow density and snow water equivalent in the stands, at an open forest area and in the meadow. The canopy interception during the observed growing season represented 26.3 % in the living forest, 32.2 % in the dead forest I and 29.0 % in the dead forest II. During the evaluated non-vegetation period, we recorded an average interception of 33.9% in the living forest, 22.0% in the dead forest I and 29.3% in the dead forest II. Overland flow reached the lowest values in the dead forest I and the highest in the living forest from the amount of precipitation at an open forest area. Snow depth, snow density and snow water equivalent reached the highest values at an open forest area. Forest die-back had an effect on the distribution of liquid and solid precipitation beneath canopy, as well as in a change in the hydrophysical properties of the snow cover.