The aim of this research was to identify the effect of eating BCAAS with resistance training on some indicators of fatigue and physical and physical components of boxers. The researcher used: the experimental method using the experimental design for the pre and post measurement of two experimental groups, and the sample of the study included (26) boxers were divided into two groups, the first experimental group (BCAAS branched amino acids with resistance training) and the second experimental group (resistance training), and the strength of each group (10) Boxers, and the researcher used the number of (6) boxers as a reconnaissance sample from outside the main sample. The data was extracted using the appropriate statistical treatments including (mean, standard deviation, torsional coefficient, Pearson correlation coefficient, T 'Test, improvement ratios). the results: The eatig of BCAAS with the resistance training resulted in a decrease in the level of the lactic acid and the hydrogen dehydrogenase enzyme (LDH), creatine phosphokinase (CPK, CK). Thus it reduces muscle fatigue, increases its resistance, taking BCAAS branched amino acids with resistance training leads to an increase in the level of urea in the blood, eating branched chain amino acids BCAAS with resistance training leads to improvement of physical and physical components under consideration, eating branched chain amino acids BCAAS as a dietary supplement by boxers members of the first experimental group resulted in better outcomes in the variables under investigation compared to members of the second group.