Abstract: CdS nanowire arrays,nanobelt and nanotubes have been synthesized successfully by thermal evaporation under condition of electric field.The dependence of electric field on the growth of CdS whiskers was studied with the help of scanning electron microscope (SEM),energy disperse X-ray spectroscopy (EDX) attached to SEM,transmission electron microscopy (TEM) and X-ray diffraction spectrometer (XRD).The electric field promoted preferential growth along the axial direction and accelerated the one-dimensional alignment growth,however,the growth of CdS nanobelt and CdS nanotubes prepared in low temperature zone were random.