To evaluate the clinical value of a new self assessment method of pain, so called pain rating score(PRS), we performed the visual analogue scale, verbal rating scale, McGill pain questionnaire, and PRS on 60 patients with complained neuro-musculo-skeletal pain. The results showed that the reliability of PRS was very high. The PRS was a simple, easy, and comprehensive method to assess the pain for its intensity, frequency, duration, and aggravating factors. The PRS was very sensitive for the change of pain. Based on the above results we have concluded that, the new self assessment method of pain, pain rating score(PRS), is a valuable and useful clinical method which is simple, easy to perform and comprehensive.