Three-year-old speech disorders have differences in clinical manifestations depending on the etiology, which generally include abnormalities in articulation, fluency problems, and language problems. 1. Pronunciation abnormality: 3-year-old children’s speech is not clear, there are errors in pronunciation, in this case the child’s airflow and intonation are not coordinated, parents pay attention to more training with the child. 2. Problems of fluency: three-year-old children with language disorders can be manifested as problems of fluency, manifested as pauses and blockages in speech, and sometimes there are repeated problems. 3. Problems with language: Children’s language problems are characterized by delayed language development, slow language development, deviation from the normal order of language development, and problems with language expression. Children with language development disorders are advised to seek timely medical attention and targeted treatment after the cause is clarified under the guidance of a doctor.