Purpose: To verify whether age influences phonological performance and working memory, and whether there is correlation between phonological working memory and severity of phonological disorders in children with language impairment. Methods: Participants were 30 children diagnosed with language impairment, with ages ranging from 4 to 6 years. Data from the assessment of phonological working memory and phonology (measured by the Percentage of Consonants Correct -Reviewed) were collected and statistically analyzed. Results: Age did not influence phonology and phonological working memory, but there was positive correlation in the comparison between performances on phonological working memory and both phonology tasks. Conclusion: Age does not support the improvement of phonological abilities and phonological working memory. However, there is positive correlation between phonological working memory and the severity of phonological disorders, suggesting that the better the speech production, the better the phonological working memory.