Purpose : To identify the effects of Hold-Relax of proprioceptive neuromuscular facilitation (PNF) on the functional improvement of patients with neck myofascial pain syndrome. Methode : The present research investigated 60 patients with neck myofascial syndrome, dividing them into a group doing Hold-Relax of proprioceptive neuromuscular facilitation and a group doing Stretching, This study examined degree of recovery from neck pain by comparing their neck myofascial pain syndrome before and after the treatment, and compared two groups to find difference in the degree of recovery from myofascial pain syndrome. Results : 1. For Hold-Relax of proprioceptive neuromuscular facilitation group, the pain rating score (PRS) were significantly decreased for six weeks treatment. 2. For Stretching group, the pain rating score (PRS) did not indicate significant decrease for six weeks treatment. 3. For Hold-Relax of proprioceptive neuromuscular facilitation group, range of motion of flexion, left rotation, right rotation indicated significant difference after pre test and after two week but no significant difference after four week. 4. For Stretching group, range of motion of flexion, left rotation, and right rotation except extension indicated significant difference after pre test and after two week but no significant difference after four week. Conclusion : The Hold-Relax of proprioceptive neuromuscular facilitation is considered to be effective in increasing joint range of motion of patient and decreasing pain. Accordingly physical therapists has to learn a wide range of patterns and to develop various treatment techniques.