Abstract: The nutritional components and microelements in stem apex of sweet potato from seven different varieties were determined in this experiment, and comparison with common vegetable was also made. The result showed that stem apex of sweet potato had various nutritional components which were higher in content than those in common vegetables except total sugar with lower level; most microelements, especially Mg、Mn、Fe and Zn, were higher in content than those in common vegetables, which provided scientific foundation for the utilization of stem apex of sweet potato as vegetable.