The term of TOS(thoracic outlet syndrome) is used to describe patients with compressed subclavian artery, subclavian vein, and the brachial plexus in the region of the thoracic outlet. The objective of this study was to evaluate a conservative physical therapy that aims to restore normal function to the upper aperture in patients with TOS. The efficacy of this study which is conservative physical therapy, was assessed by pain, grip power, pinch grip, and satisfaction level of patients. The results were as follow; 1. Pain(VAS) was statistically significant with Group 1 and Group 2(P<0.05), and Group 2 was more statistically significant than Group 1(P<0.05). 2. Spherical grip was statistically significant with Group 1 and Group 2(P<0.05), and Group 2 was more statistically significant than Group 1(P<0.05). 3. Pinch grip was statistically significant with group 1 and Group 2(P<0.05), and Group 2 was more statistical significance than Group 1(P<0.05). 4. Satisfaction level was statistically significant with group 1 and Group 2(P<0.05), and Group 2 was more statistically significant than Group 1(P<0.05).