There is much controversy about the extent to which auditory processing deficits are important in the genesis of language disorders, paryicularly specific language impairment ( SLI ) . This studys objective was to provide diagnostic correlates of language assessment, psychlinguistic abilities, ABR and p300 responses in children . The study was carried out on 40 children with specific language impairment and 20 controls. They were all subjected to the language test, Illinois psycholinguistic test with its 7 auditory items as well as an audiological assessment that included ABR and P300 recordings . There was a highly significant statistical difference in p300 amplitude and latency as well as ABR latencies between patients and controls. There were also strong correlations between P300 results and most of tests under study.