Brain Trauma Injury [BTI], is the most common cause of brain injury which consequences, in a cognitive level, leads to attention disorders. The aim of this study is to evaluate the effect of a BTI intervention program in the attention of patients who have a moderated BTI. This program was applied to 3 men with an average of 9 years of education, with a media of 31, 6 years old, a Glasgow result between 9 to 12 points, and no neurological nor psychiatric antecedents. Also, the Brief Neuropsychological Test Battery [Neuropsi], was applied as a sift, in which, the patients obtained a media of 100, finding errors in the attention, memory and motor skills tasks. The instruments used to determine the pre and post evaluation in the attention function were: the Wisconsin Card Sorting Test [WCST], the Trail Making Test A and B [TMTA-TMTB], the Stroop task and the Letter Cancellation Test. This research was quasi-experimental with a design of only one group; the efficacy of the intervention was evaluated through the difference between the pre and post media, once the program was applied. After the intervention, there were found changes statistically significant in the WCST in just one patient. However, all patients improved their reaction time and carried out cognitive tools such as planning, categorization and classifying.