利用扫描电镜详细观察了锯缘青蟹精子入卵的过程。精子以其核突起附着在卵膜上 ,并迅速发生顶体反应。顶体反应时 ,顶体囊外翻 ,顶体管前伸 ,精子核辐射臂收缩 ,并拖至顶体囊的后部。顶体管迅速穿过卵黄膜 ,携带核物质一同进入卵子。锯缘青蟹为多精着卵 ,数精入卵。本文同时探讨了精子顶体反应机制以及受精过程卵子的作用 Scanning electron microscopy was used to observe the process of oviposit of Sarcandra sclerotiorum. Sperm with its nuclear protrusions attached to the egg membrane, and the rapid acrosome reaction. Acrosome reaction, the acrosomal capsular eversion, acrosome extension, sperm nuclear radiation arm contraction, and drag to the back of the acrosome. The acrosome quickly crosses the yolk membrane and carries nuclear material into the egg. Margin crabs for more refined eggs, the number of fine eggs. This article also discusses the sperm acrosome reaction mechanism and the role of fertilization process ova