glycine-nitrate process (GNP) was used to synthesis Ce0.65La0.35O1.825 (LDC) powders. The samples were obtained by sintering for 10 h at 1400 ℃. The phase composition and morphology were characterized by XRD and SEM. We measured the current change with time of specimen at different temperatures and thus calculated the transferred number of ions and the DC conductivity. Almost all the mobile ions will shift around their positions, but only tiny portion can migrate through a few lattice length. The number of transferred ions increased with temperature, but far smaller than the total number of oxygen vacancies. The transferred ion number and temperature follows Arrhenius relationship with the activation energy of 0.83 eV.