In this study, we investigated the possibility of constructing a portable SOFC system using DME as fuel. It was clarified that DME have some suitable properties as a fuel for the portable device. Tubular SOFC was fabricated and measurements of cell performance with different conditions were carried out. The fabricated cell successfully obtained 0.122 Wcm(-2) as the maximum power density at 750 degrees C. The impedance spectra showed that the resistances for electrochemical reactions were dominant factors for voltage drops. Thus it was clarified that decreasing these activation overvoltages is the most promising approach to improve power generation property of our fabricated cell.