Ni/LaAlO3 catalyst reformed biogas to syngas with high performance at 800 °C. The Ni/LaAlO3 catalyst prevented carbon deposition on the catalyst. SOFC with Ni0.8Cu0.2/GDC anode fueled with the syngas was operated at 600 and 700 °C. Performance of the IT-SOFC was comparable to the performance using H2 fuel. The performance stably lasted for 24 h at 700 °C without interruption by coking.