Abstract: Co₃O₄ nanowires were facilely synthesized by using mesoporous SBA-15 modified by trimethylchloro silane（TMCS） and aminopropyltriethoxyl silane（APTS） as a template,Co（NO₃）₂·6O₃O as starting material.The modified SBA-15 and the resulting Co₃O₄ were characterized by X-ray diffraction（XRD）,Transmission electron microscopy（TEM） and Nitrogen adsorption surface and porosity measurements（BET）.The results show that the modified SBA-15 still has ordered mesoscopic architecture.The prepared Co₃O₄ nanowire has face-centered cubic structure.The average diameter of Co₃O₄ nanowire is 4 nm and the length of Co₃O₄ is in the range from 250-600 nm.The obtained Co₃O₄ nanowire was assembled as an anode material for lithium secondary battery,and its electrochemical property was measured.The results show that the initial discharge capacity is about 1107 mAh g-1,and lithium secondary battery exhibits better charge /discharge performance.