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The medium glass was made from chemical compounds with a composition (70-x) P2O5 - 10Bi2O3 - 10Na2O - 10Gd2O3 - xDy2O3 (where x = 0; 0.05; 0.1; 0, 5; 1.0; 3.0 (mol%)) which is doped by active ion xDy2O3. All of propofed chemical compounds are in the form of powder with a mass of 20 gram of mixture in an alumina crucible and prepared by melt-quenching method. The glass that has been obtained with a size (3x10x10) mm3 and smoothed to get a flat surface and high transparency. The physical properties obtained from the glass medium are density, molar volume, refractive index, ion concentration Dy:PBiNaGd, molar refractivity and susceptibility. The results of research indicated that the glass of Dy:PBiNaGd amorphous. This amorphous nature is confirmed by spectroscopy diffraction of X-ray (XRD). Measurement of FTIR spectra to glass Dy:PBiNaGd shows the asymmetry strain in the P-O-P (POP) bond at an area of 861 cm-1 absorption.