Objective To analyze the clinical characteristics of functional articulation disorders in children at different age stages,so as to provide evidence and reference for intervention and treatment. Methods Totally 153 children were enrolled in this study and were divided into 4-year-old group,5-year-old group and 6- to 9-year-old group.Specific tests and treatment were carried out to analyze the error patterns and curative effect. Results The average numbers of consonant errors in 4-year-old group,5-year-old group and 6- to 9-year-old group were 9.3,7.8 and 6.5 units,respectively.The highest error rate was palatal consonant,about 90.8%.The commonest errors were pronouncing as retroflex and dental consonant,with error rates about 74.5% and 46.4%,respectively.The error rates of substitution,distortion and omission were 98.0%,62.7% and 7.2%,respectively.The degree of disorder,the pronunciation errors of labial,labiodental,retroflex,velar,and dental consonants,as well as the errors of pronouncing as inalveolar,plosive,affricate,unaspirated consonants and omission were significantly different among different age groups (P<0.05). Conclusions Age has an influence on the degree of articulation disorder.With the increasing of age,the pronunciation of most consonants improved,but most of the error patterns and curative effect are not affected.When developing the problem of functional articulation disorders,children should be treated as soon as possible regardless of age.