目的　探讨家兔面神经颅外段的主干及分支特点。  方法　健康家兔15只，在显微镜下解剖家兔面神经，并对其形态特点进行观测。  结果　家兔面神经出茎乳孔后分出耳后支、二腹肌支、茎突舌骨肌支及面神经主干。兔面神经主干在面部的分支有颞支、颧支、颊支、下颌缘支和颈支,其中颧支与颊支关系密切，走行过程中合成一干，然后在口角后缘分离。  结论　家兔面神经颧支与颊支在耳廓下缘前部位到口角后缘之间，分支少，神经干较粗，便于进行面神经缺损修复动物模型的建立。

Objective　To investigate anatomic features of the extracranial facial nerve of rabbits. Methods　15 healthy rabbits were used in this study. The facial nerve and it's extracranial branches were dissected and measured under the surgery microscope.　Results　After leaving stylomastoid foramen, the facial nerve trunk ramified the post aurem branch, the digastric branch and the stylohyoid branch, and then, the main trunk passed through the surface of jugomaxillary muscle, and further divided into temporal branch, zygomatic branch, buccal branch, marginal mandibular branch and cervical branch. The zygomatic branch closed to the buccal branch initially and combined into the latter, but separated from the latter again at the posterior border of angle oris.　Conclusions　For rabbit, the zygomatic and the buccal branches of the facia l nerve origining from the antero-inferior border of the auricle and reaching the posterior border of angle oris are stable and identifiable, which is feasible for repairing damaged facial nerve.