Purpose to analyze e to describe the skills’ performance of the phonological processing components in subjects with Attention Deficit - Hyperactivity Disorder (ADHD). Methods it is a descriptive analytical study of the evaluation data of the phonological processing skills of 45 subjects, with ages between 7 and 16 years, with a multiprofessional diagnosis of ADHD. All data was obtained from the medical records of the subjects evaluated by the Laboratório de Estudo dos Transtornos de Aprendizagem (LETRA) of Hospital das Clínicas da Universidade Federal de Minas Gerais (UFMG), between the years of 2008 and 2011. The analyzed results include the Phonological Awareness test, proposed by the battery of tests BELEC, the Rapid Serial Naming (RAN) test and Auditory Memory test. Two variables were considered in this analysis: the age and the presence or absence of associated comorbidities. The test used to the sample characterization was the nonparametric of Mann Whitney. Results groups tend to differentiate themselves when the age variable is analyzed, on the Phonological Awareness tests and RAN. When the comorbidity variable was analyzed, the Phonological Awareness was more influenced by the presence of comorbidities. On the Auditory Memory skills, by the same light, there were no differences between the groups. Conclusion the largest deficit in phonological processing was observed in phonological awareness skills, according to the age and comorbidity variables, followed by the lexicon’s access skills, according to the age variable. About the Working Memory, there was no significance.