PURPOSE: to describe the production of final simple and complex coda with /S/ in children with phonological disorder, verifying the influence of linguistic and extra-linguistic variables in codas acquisition. METHOD: we utilized speech data from 66 children with phonological disorder, 33 boys and 33 girls, aged between 3:0 and 9:0. Speech samples were collected through a crossed-nature study, using the instrument referred to as Child Phonological Evaluation¹, with 481 words being part of the database from a project which was approved by the Ethics Research Committee (CEP) of the institution. Next, the words were statistically analyzed through the statistical program VARBRUL, considering a significance level of 5%. We took into account as dependent variables the correct production of /S/, the omission of the coda or its substitution. As intervening variable, we considered the extra-linguistic factors age, sex, degree of the phonological disorder; and the linguistic variables grammatical class, tonicity, precedent context, and type of coda. RESULTS: the statistical program selected as statistically significant for the correct production of simple and complex coda, the degree of the phonological disorder, the type of coda, and the grammatical class, with the value of p < 0.01. CONCLUSION: we verified, through this study, that the degree of phonological disorder, type of coda, and grammatical class influenced in a significant way on the production of final simple and complex coda with the archiphoneme /S/, in children with phonological disorder.