By evaporation method pulse electron beam of microdimensional polycrystalline phosphor of structure of Ca 2Y 8(SiO 4) 6O 2: Eu are for the first time received nanophosphor in an amorphous state. Methods of the differential scanning calorimetry and thermogravitation measurements (40-1400 °C) studied processes of crystallization of amorphous nanopowder. Temperature of the beginning of crystallization T kr = 330 °C. Modification of the Raman spectra and increase in width of the forbidden band of samples at reduction of particles from micro to a nanodimensional state is found. Spectral and luminescent characteristics in polycrystalline and nanoamorphous states are studied. It is established that upon transition to a nanoamorphous state phosphors change color of a photoluminescence with red-orange (Eu 3+) on blue (Eu 2+). Resonant interaction in the nanophosphors of ions of Eu 2+ with Eu 3+ ions is revealed.