This study was performed to elucidate the stage of stress of TaeKwondo Athletics. Every Athletics feel stress before game, especially TaeKwondo Athletics feel more stress. I used the relaxing technic to experimental group which were listening light music or thinking. There are many kinds of relaxing method. Eperiments were checked by G.S.R. and Spo2. G.S.R. of experimental group were smaller change than control group. Spo2 had no significant change in both group. It suggested that relaxing before game could reduce the stress, but no effect in Spo2