Anode materials of microcrystalline spherical SnSb alloy for lithium-ion batteries were synthesized from tin and antimony oxides by carbothermal reduction. The so-prepared electrode shows a low initial irreversible capacity and good cycling performance. The initial capacity loss and reversible capacities are 160 mAh/g and 650 mAh/g, respectively. The relatively low specific surface area of SnSb particles should be responsible for the low initial irreversible capacity, while the polycrystalline characteristics of SnSb particles is apparently favorable for the improvement of cyclieability of SnSb electrode. The electrochemical reaction process of SnSb alloy electrode was characterized by cyclic voltammetry and AC impedance techniques.