Porous composite cathodes were fabricated by impregnating (La 0.74 Bi 0.10 Sr 0.16 )MnO 3−δ (LBSM) electronic conducting structure with the ionic conducting Ce 0.8 Gd 0.2 O 2−δ (GDC) phase. The ion impregnation of the GDC phase significantly enhanced the electrocatalytic activity of the LBSM electrodes for the O 2 reduction reactions, and the ion-impregnated LBSM–GDC composite cathodes showed excellent performance. At 700°C, the value of the cathode polarization resistance (Rc) was only 0.097Ωcm 2 for an ion-impregnated LBSM–GDC cathode, and the performance was gradually improved by increasing the loading of the impregnated GDC. For the performance testing of single cells, the maximum power density was 1036mWcm −2 at 700°C for a cell with the LBSM–GDC cathode. The results demonstrated the unique combination of the LBSM electronic conducting structure with high ionic conducting GDC phase was a valid method to improve the electrode performance, and the ion-impregnated LBSM–GDC was a promising composite cathode material for the intermediate-temperature solid oxide fuel cells.