Purpose : To evaluate effects of McKenzie exercise on the functional recovery and forward head posture of chronic neck pain patients. Methods : The subjects were consisted of fifteen patients who had abnormal neck posture, mild neck pain (28 males, 17 females; mean aged 21.9) from 19 to 33 years of age(mean age 21.9). All subjects were received McKenzie exercise for 35 minutes with clinical massage per day three times a week during 4 weeks period. Neck disability index was used to measure functional disability level. Visual analogue scale(VAS) was used to measure subjective pain level. craniovetebral angle(CVA), cranial rotation angle(CRA) was used to measure forward head posture with digital camera. All measurements of each patients were measured at pre-treatment and after 2 week, after 4 week, post-treatment on 2 week. Result : The VAS of McKenzie exercise was significantly reduced between pre-treatment and post-treatment (p<.05) and effects of pain reduce was continued follow 2 weeks. The Neck Disability Index of McKenzie exercise was significantly reduced between pre-treatment and post-treatment (p<.05) and effects of pain reduce was continued follow 2 weeks. The CVA of McKenzie exercise was significantly reduced between pre-treatment and post-treatment (p<.05) and effects of pain reduce was continued follow 2 weeks. The CRA of McKenzie exercise was not significantly reduced between pre-treatment and post-treatment (p<.05). Conclusion : McKenzie exercise improved pain and function of Chronic neck pain patients.