Objective To explore the rehabilitation effect of Child Language Intervention ECNU Ladder Model on vocal imitation skills in children with language development delay. Method According to the assessment results of speech ability of a child with language retardation

the rehabilitation program of vocal imitation ability was developed based on the ECNU ladder model

and the intervention lasted for 1 month. The effect of speech rehabilitation was analyzed by the assessment results of language ability before and after the intervention. Results After rehabilitation

the children’s vocal imitation frequency and correct rate were significantly improved

and the awareness of initiating meaningful speech was significantly enhanced

which laid a foundation for the subsequent oral expression. Conclusion ECNU ladder model can effectively improve the vocal imitation ability of children with language development delay

and can provide reference for clinical language rehabilitation of children with language disorders.