Background Cubital tunnel syndrome is a common compressive neuropathy, its conservative and surgical treatments results are not satisfactory; the need for a novel, safe, and effective therapeutic modality is highly required. Patients and methods 30 patients (30 elbows) in the intervention group received 3 sessions of rESWT (radial extracorporeal shock wave therapy) one session/week, and placebo control group (17 patients - 20 elbows) received sham treatment. Clinical, functional, electrophysiological and ultrasonography morphological assessment were done at baseline, 2 weeks after last session, and after 3 months of follow up. Results Patients of intervention group showed significant improvement of clinical, functional, electrophysiological and ultrasonography morphological assessment parameters relative to control group either after treatment or at follow up period. Conclusion rESWT is an effective and safe treatment for relieving symptoms of compressive ulnar neuropathy at the elbow.