The ZnO@CNTs has been prepared via a thermal decomposition route. The spectra of X-ray powder diffraction (XRD) prove that as-prepared ZnO is primitive hexagonal phase and CNTs with an interlayer distance of 0.34 nm is low graphitized carbon in this research. The diameter and length of ZnO@CNTs are 150-200nm and 1.5-2μm, respectively. The vibration on 1625cm-1, 1540cm-1 and 1380 cm-1 shows that the surface of ZnO@CNTs have great functional groups.