In-situ exsolution of metal nanoparticles affords a high content and uniform distribution of metal nanocatalysts without complex synthetic processes. To implement this strategy in practical electrodes for solid oxide fuel cells (SOFC), a series of Ni doped Sm0.20NixCe0.80-xO2-δ (SNDC) anode materials were fabricated by the Pechini method. The in-situ exsolved Ni nanoparticles are uniformly distributed on the surface of the SNDC substrate after reduction. The maximum cell performance is achieved with SNDC15 as the anode of electrolyte supported single cell, and the maximum power density of the single cell is 1.26 W/cm2 and 1.48 W/cm2 when fed with hydrogen and methanol at 700 ℃, respectively. Moreover, a strong interaction between Ni nanoparticles and the oxide support effectively inhibits the growth of carbon deposition. The single cell with methanol fuel exhibits a stable power output at 700 ℃ for 10 h.