Nanopowders of the 5 at.% Eu doped CaF2 have been synthesized by co-precipitated method. X-ray diffraction (XRD) indicated that the samples corresponds to the cubic CaF2 phase and scanning electron microscopy (SEM) showed that the morphology of nanopowders were approximately spherical. The Eu: CaF2 transparent ceramics were fabricated by hot-pressing (HP) method at different P-T conditions in a vacuum environment. The fracture surface, the relative density, average grain size and shrinkage displacements were also studied to analysis the influence of sintering conditions on Eu: CaF2 ceramic. In comparison with other samples, the proper sintering temperature and pressure was 600 degrees C/30 MPa. The transmittance of ceramic was up to 79.7% and 88.85% at the wavelength of 760 nm and 2400 nm. Furthermore, the emission spectra of Eu: CaF2 transparent ceramics under 393.5 nm excitation was also discussed. (C) 2017 Elsevier Ltd. All rights reserved.