目的:为手外科提供桡、尺动脉分出的肌、皮支.材料和方法:用福尔马林常规固定的成尸上肢69(男61,女8)侧,解剖观测桡、尺动脉分支的部位、支数及外径.主要结果:从尺、桡动脉壁两侧发出分支,大部分为不对称性分支间距不等,平均(3.0～15.0)mm.桡动脉平均分出15.8支,其中肌支10.3支,筋膜皮支5.5支.尺动脉平均分出12.4支,其中肌支7.6支,筋膜皮支4.8支.结论:桡、尺动脉分出肌、皮支,皮支为前臂筋膜瓣、皮瓣的血管蒂. OBJECTIVE: To provide radial and ulnar artery branches and branches for hand surgery.Materials and Methods: The radial and ulnar artery branches were anatomically dissected with formal fixed axillary 69 (male 61 and female 8) (3.0 ~ 15.0) mm. The average radial artery output 15.8, the average diameter of the radial artery was 15.8, Of which 10.3 were muscular branches and 5.5 fasciaal branches.The ulnar artery had an average of 12.4 branches, of which 7.6 were muscular branches and 4.8 were fasciculus branches.Conclusion: The radial, ulnar artery branches, Forearm fascia flap, flap of the pedicle.