1. Screening Two-stage screening is implemented: health care institutions, with the informed consent and informed choice of the guardians of newborns, perform primary screening from 2-5 days after birth to before discharge, and those who fail to pass the screening should be rescreened within 42 days after birth, and those who still fail should be referred to a tertiary hospital qualified to detect neonatal diseases (hearing). For the key screening subjects, even if they pass the screening, they should still be combined with auditory behavior observation method, and the infant’s guardians should be informed to follow up every 6 months for 3 years, and the problems found in the follow-up should be promptly referred to confirm the diagnosis and treatment. 2.Diagnosis and evaluation Instrumental evaluation: Infants who fail the retest should undergo otolaryngological examination and otoacoustic conduction resistance, otoacoustic emission, auditory brainstem evoked potential detection, behavioral audiometry and other related examinations at a tertiary hospital qualified to detect neonatal diseases (hearing) at 2 to 3 months of age, and medical and imaging examinations should be conducted to make diagnosis and evaluation generally at 6 months of age to clarify the degree of hearing loss and The diagnosis and evaluation are usually made at 6 months of age to clarify the degree of hearing loss and the site of hearing loss as well as the possible causes. (3) Treatment and intervention (1) Treatment: Tertiary hospitals with neonatal disease (hearing) testing qualifications are responsible for the treatment of children diagnosed with hearing impairment according to the cause. (2) Hearing compensation or reconstruction: For children diagnosed with sensorineural deafness, tertiary hospitals qualified to detect neonatal diseases (hearing) will guide the children to carry out the following early interventions: (1) Hearing aid selection: For children with partial hearing remaining (mild to severe hearing impairment), appropriate hearing aids will be selected according to relevant standards for hearing correction; (2) Cochlear implantation (2) Cochlear implantation: for children with severe or very severe cochlear hearing loss, cochlear implantation can be performed if conditions permit; (3) Hearing and language training: after hearing aids or cochlear implantation, arrange for the child to receive appropriate hearing and language rehabilitation training and home rehabilitation guidance in relevant rehabilitation institutions to promote the development of hearing and language in deaf children.