Objective To evaluate the treatment outcome of nerve fascicle transfer for treatment of flexor elbow Method Fifty two cases of brachial plexus injury were involved The function of elbow joint was restored by using fascicle nerve transfer from part of median nerve, ulnar nerve, thoracodorsal nerve and contralateral C 7, to the muscular branch of the biceps Results There was no significant adverse effects of the donor function following partial nerve resection Twenty six patients had biceps strength M 4 and flexed elbow joint more than 90 degree Conclusion Partial nerve fascicle transfer to the nerve branches of biceps from the donor nerve can provide sufficient nerve fibers to reinnervate biceps