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Background and aim: Intonation perception mainly relies on fundamental frequency changes perception that is not available for individual with profound to severe hearing loss. The aim of the present study is to investigate the perception of intonation in cochlear implanted children and compare with normal hearing children.

 Materials and methods: This study has been carried out on 25 cochlear implanted children and 50 children with normal hearing. An adult who her first language was Persian, expressed some questions and statement sentences. These sentences were playing for child and was asked him/her to determine whether it was in a question form or statement one.   

 Results: The results showed that perception of question and statement sentences intonation had significantly differences between two groups (P<0.05). Perception of question and statement sentences intonation had significantly correlation with age at implantation and duration of implant use (P<0.05).

 Conclusion: According to the findings of the current study and previous studies, cochlear implant has some deficits in facilitating the perception of intonation. However, this limitation has been compensated partly for early surgery. Thus, speech language pathologists should consider intervention of intonation in treatment program of cochlear implanted children.