To compare the effectiveness of the hemisling, bobath sling, extension-type sling, and the newly designed Modified Triangular Bobath Sling with Distal Support on a hemiplegic shoulder subluxation. Fourteen hemiplegic patients with shoulder subluxation were evaluated by a simple X-ray with and without the slings and the vertical and horizontal distances on the plain AP views were measurement. The newly designed arm sling was compared in terms of the effects of correction with distal support attached with shoulder saddle sling. The arm sling designed for this study was developed for the purpose of maintaining patients hands in a functional position and performing ROM exercise of the shoulder easily, and prevention or correction to shoulder subluxation. The mean values of the vertical and horizontal distance were compared to determine if there was significant difference of function between the new sling and the conventional slings. The new sling provided the patients with good vertical correction of the subluxation(p<0.05) but did not increase the horizontal distance significantly. These results support the effectiveness of a new sling to decrease subluxation in hemiplegia. Further study on the long term effects or complication of the new sling is recommended.