Objective:  To investigate the impact of uniform color in boxing, taekwondo and wrestling on athletes' judgement towards aggressiveness, fairness and chance of winning.

  Method:  Participants(N=159)were asked to give the judgement in 3 different colors of sports suits (red, blue and green), and one-way ANOVA analysis were adopted.

  Results:  1) In term of the judgement of aggressiveness, there is a significant difference in the selection of red, blue and green uniforms in boxing, wrestling and taekwondo.2) In term of the judgement of fairness, there is a significant difference between red uniform and blue uniform in boxing, so is in wresting.3) In term of the judgement of winning chance, there is a significant difference between red, blue and green uniform in boxing, so is in taekwondo, as well as between red and blue uniforms in wrestling.

  Conclusion:  Athletes in red uniform were considered to have honest nature and fair spirit, and more aggressive and more likely to win in competitions.