Mesoporous CaF2 nanopowders with specific surface area up to 91.5 m2/g have been produced using by electron beam evaporation method in vacuum. The effect of nanosecond e-beam irradiation in air on magnetic and texture properties this nanopowders has been studied. The irradiation influence on the specific surface area and magnetization of CaF2 nanopowder has been discovered for the first time.