Cd_(1-x)Sm_xTe crystals (x=0.0005, 0.005, 0.01, 0.05) have been grown by Bridgman method for the first time. Photoluminescence measurements have been carried out in liquid nitrogen temperature range and the magnetization measurements have been made at 1.5K and magnetic fields up to 7T by using the extraction method. It is shown that the photoluminescence peak shifts toward the short wavelength (high energy) with the increase of x, corresponding to the decrease of lattice constant. The difference of paramagnetism between the rare-earth ions and transition metal ions is discussed and analyzed.