Objective: To evaluate the effect of the discrimination rate in the consonant by cochlear implanted.
Method: The four cases by cochlear implanted have rehabilitated with hearing speech for 1.0-1.5 years.
Result: The discrimination rate in the four cases by cochlear implanted was 76.0% in the consonant, 94.1% in the vowel.
Conclusion: The discrimination rate in common language of Chinese was lower than that of vowel. When the patients discriminated the consonants with the same formants feature, the chance of the auditory is relatively high.