以黑叶、糯米糍、桂味、禾虾串荔枝品种为材料，应用扫描电镜比较观察了果皮的超微结构。所有品种的果面均由峰谷组成，峰即肉眼可见的龟裂片，谷即联接龟裂片的低洼部位，峰谷均由许多小突起构成。不同品种果面小突起的排列方式与突起程度有别。小突起受到破坏后，形成蜂窝状凹陷。小突起与蜂窝状凹陷的表面均呈皱褶的网状。果面普遍观察到微裂口与表皮毛。禾虾串上观察到特有的联接龟裂片的长条状组织。讨论了荔枝果皮结构与贮藏保鲜的关系 The ultrastructure of pericarp was observed with scanning electron microscope (SEM), using the leaves of black leaf, glutinous rice, cinnamon, and shrimp as the materials. All varieties of fruit are composed of peaks and valleys, peaks that visible macroscopic lobed, valleys that join the low-lying parts of the lobed, valleys by the many small protrusions. Different varieties of fruit small protrusions arranged with the degree of protrusion are different. Small protrusions damaged, the formation of honeycomb depression. The surfaces of the small protrusions and the honeycomb-like depressions are in the shape of folds. Fruit surface generally observed micro-cleft mouth and epidermal hair. Wo shrimp string observed on the unique joint of the elongated lobed tissue. The relationship between litchi peel structure and storage and preservation was discussed