Background: Early diagnosis and intervention of hearing loss in children is important for the acquisition of hearing and speech, thereby contributing to the positive development and quality of life of this child. This study focused on the quality of life in children who had prelingual bilateral severe to intense sensorineural hearing impairment after receiving a cochlear implant. Methods: This was done through a validated questionnaire directed to parents or care givers of those children (up to 18 yrars old) included in the study and attended the audiology unit in the hospital of Benha University for evaluationhearing after cochlear implantation. Results: This study revealed that more than ninety percent reported high scores in domains of questionnaire and there was statistically difference (p < 0.001) (between children who were implanted at an earlier age (<24 months) have a better quality of life, especially in Support, Communication, Self-confidence, well-being, and social relation sub scales. Also, this study proved that children who had been using their implant for more than 10 years were superior to those who had been using it for less than 10 years in terms of communication, self-confidence, well-being, social relationships, and implantation services. Conclusions: Despite the fact that varied etiologic causes for hearing loss have led to a variety of results, cochlear implants typically increase communication, self-confidence, well-being, and social relations, which has a favorable impact on a person's quality of life. Additionally, a child's parents will notice a significant shift in their child's life after receiving a cochlear implant