A ten-cell stack was assembled and tested with an active area of 10×10cm2 at 750 ℃(H2, Air) on April 24th, 2009. The power density of the stack reaches to 0.31W/cm2, and the maximum output power of a single cell could reach to 50W with the power density of 0.5W/cm2 in the current stack design. The results show the performance of a single cell and the technique development of the stack has been achieved at a new advanced level.