the present study was conducted to investigate the stress levels of kid swimmer before and after in a swimming competition. In reviewing the data collected in the present study, the results of this study do not support the hypothesis that the swimmer's stress levels in the study group will decrease at the end of the swimming competition. the results regarding stress level of the swimmer showed that there was not a statistically significant difference in term of swimmer's stress levels before and after the swimming. This conclusion is in agreement with the research made by Ozeki 1989 on investigating the stress levels difference sports branches competition