We developed a fabrication processes of a micro-tubular SOFC stack using a metallic tubular interconnect. The stack was made of the 12 micro-tubular cells, which were connected in series. The open circuit voltage (OCV) was above 13V, thus the single cell showed the OCV value about 1.1V. Fuel utilization of the stack under a wet H2 flow of 20cc/min was above 90%, and the efficiency (LHV) was about 60%. In addition, the stack can be started-up within 5 min, and we succeeded the quick-start/shut down multi-cycles.