Objective : The purpose of this study was conducted to find treatment of forward head posture and shoulder instability with proprioceptive neuromuscular facilitation concept. Methods : This is literature study with books, seminar note and international course. Results : Forward head posture and shoulder instability has related each other. Forward head posture will make muscle instability, weakness and stiffness on neck and shoulder girdle. It will make pain also. Important muscle are suboccipital muscle, omohyoid muscle, sternoclaidomastoid muscle, scaleni, pectoralis minor, levator scapular and digastric. Conclusion : Treatment of the forward head posture and shoulder instability is provided. It is that treatment of stiff muscle with eccentric muscle work, muscle elongation, muscle strengthening at the structure level and at the functional level for daily activities.