Objectives : The objective of this study was to observe the relationships between neck pain and psychological factors such as stress, anger, anxiety and depression. Methods: Under mental stress. the 31 patients with neck stiffness and 32 control subjects with no neck stiffness were measured by using NDI, BEPSI, GARS, STAXI, STAI, and BDI scales. The psychological scales between the patients and the controls were taken to observe the average results by comparing between the two groups. Also NDI and psychological scales of correlation analysis was performed. Results: 1. The mean scores of NDI, BEPSI, GARS, State-Anger, Trait-Anger, Anger-out, Anger-In, Sate-Anxiety, TraitAnxiety, and BDI under patients group were significantly higher than those in control group. 2. The value of NDI comparing to the values of BEPSI, GARS, State-Anger, Trait-Anger, Anger-out, Anger-In, Sate-Anxiety, Trait-Anxiety, and BDI in this study resulted in high correlation among each others which showed statistically significant. Conclusions : It has the possibility that the neck pain with stress. anxiety. anger and depression might be related highly in correlation. especially in stress and anxiety which showed the most high correlation.