用扫描电镜观察了枫杨叶水浸液对红螺头足部及肝部表面的损伤情况．结果显示：经枫杨叶水浸液（1.0％）处理之钉螺，头肿胀，其上颗粒放大后为瓜络样突起，呈浸润状，表面网孔增大破损，口唇溃烂变形，足肌肿胀，表面有许多孔洞；外套膜缺损变形，前端边缘纤毛稀疏散乱，部分断落；低浓度（0．1％）对肝部内囊膜没有明显的损伤，高浓度（1．0％）则有大量明显被浸蚀之孔洞，表面有块状脱落． Scanning electron microscope (SEM) was used to observe the damage of the red-screwed head and the surface of the liver by aqueous extract of maple leaf. The results showed that: the snail treated by water extract of Chinese maple leaf (1.0%) swollen its head, the melon-like protuberance was enlarging after its particles were enlarged, the surface meshes were enlarged and damaged, There are many holes; mantle defect deformation, the front edge of the cilia sparse scattered, partially broken; low concentration (0.1%) on the hepatic capsule did not significantly damage the high concentration (1.0%), there is a lot of obvious Eroded holes, the surface is massive lump off.