OBJECTIVE: To develop and evaluate newly designed orthosis to control contracture of the shoulder and the forearm in the spastic upper limb. METHOD: Subjects were 6 hemiplegic patients and 1 tetraplegic patient who showed the features of spasticity. Volar wrist hand orthosis was modified to attach a plastic stick which can be easily separated. The orthosis was applied in supinated position for 8 weeks. The shoulder and elbow range of motion was measured every 2 weeks for 8 weeks. RESULTS: The subjects with spasticity showed significant improvement in the shoulder abduction (p<0.05), adduction (p<0.05) and external rotation (p<0.05) after applying modified volar wrist hand orthosis for 8 weeks. The forearm supination was well maintained for 8 weeks. CONCLUSION: The newly designed orthosis showed significant effects in the improvement of the shoulder abduction, adduction and external rotation and the forearm supination of spastic upper limbs.