应用扫描电镜观察了北京地区华支睾吸虫各期的超微结构。囊蚴类圆形或卵圆形,表面有微细波状皱襞,一侧可见附着在鱼肉上的痕迹。后尾蚴长椭圆形,口吸盘上有8个感觉乳突,口缘亦有感觉乳突。中央有感觉纤毛。腹吸盘与口吸盘大小相似,有6个乳突,但未见纤毛。腹吸盘前后各有1对较小感觉乳突,具纤毛。体表除尾部及腹吸盘前以外,皆被有单生皮棘,每个皮棘有纵裂,前端有2～4个尖齿。腹面生有两 Scanning electron microscopy was used to observe the ultrastructure of Clonorchis sinensis in each stage of Beijing. Cysticercosis round or oval, the surface corrugated corrugated fine, visible on the side of the fish attached to the traces. After the long oocysts of cercariae, mouth sucker 8 feeling papillae, mouth also feel mastoid. Central feel cilia. Abdominal sucker and sucker size are similar, with six papillae, but no cilia. Abdominal sucker before and after each have a smaller sense of papillae, with cilia. In addition to the body surface of the tail and the abdominal suction before the sucker, were all single spines, spines each longitudinal split, the front has 2 to 4 tines. Two belly students