The different ZnO nanocrystals were fabricated with zinc sheet ( purity 99.99 % ) by CO_2 laser irradiation. The morphologies, components and phase structures of ZnO products were investigated by field-emission scanning electron microscopy, X-ray diffraction, and energy dispersed X-ray spectrometer. 利用场发射扫描电子显微镜、X射线衍射仪以及X射线能谱仪等试验方法对同轴送氧CO2连续激光制备的ZnO纳米晶体的形貌、组成成分以及相结构进行了分析。