目的　为眶入路法行翼腭窝穿刺提供新的进针路径。  方法　对77个（154侧）成人颅的眶和翼腭窝进行相关的观察和测量。  结果　眶外缘点至眶外下缘点、圆孔外口下缘、眶上裂后端、眶下裂前端的距离分别为：左（4.93±1.80）mm，右(4.02±2.05）mm；左（43.74±2.75）mm，右(43.80±2.89）mm；左（47.83±2.47）mm，右(47.74±2.53）mm；左（17.74±2.18）mm，右(17.43±1.97）mm。穿刺针（直针）由眶外缘点进入翼腭窝的成功率为：左侧96.10%；右侧93.51%。对穿刺针（直针）进入翼腭窝失败者改用弯针穿刺，直针和弯针由眶外缘点进入翼腭窝的总成功率为：左、右均达98.70%。  结论　经眶外缘点行眶入路翼腭窝穿刺可明显提高穿刺成功率。

Objective　To provide an anatomic basis for a modified approach of the puncture of the pterygopalatine fossa through the orbit.　Methods　The pterygopalatine fossa and orbit were observed with relevant anatomical data obtained in seventy-seven human skulls.　Results  (1) The distance from the point of lateral orbital margin to the point of the inferolateral edge of the orbit was (4.93±1.80) mm at the left side and (4.02±2.05) mm at the right side; (2) The distance from the point of the lateral orbital margin to the point of the lower edge of the external aperture of the foramen rotundum was (43.74±2.74) mm at the left side and (43.80±2.89) mm at the right side; (3) The distance from the point of the lateral orbital margin to the point of the posterior end of the superior orbital fissure was (47.83±2.47) mm at the left side and (47.74±2.53) mm at the right side;（4）The distance from the point of the lateral orbital margin to the point of anterior end of the inferior orbital fissure was ( 17.74±2.18) mm at the left side and (17.43±1.97) mm at the right side.（5）The success rate of the puncture of the pterygopalatine fossa from the point of the lateral orbital margin with a straight needle was 96.10% at the left side and 93.51% at the right side;（6）The combined success rate of the puncture of the pterygopalatine fossa from the point of the lateral orbital margin using both a straight needle and a curved needle could reach 98.70% at both sides.　Conclusion　The success rate of the puncture of the pterygopalatine fossa from the point of lateral orbital margin was higher than that of other puncture methods.