Whether an infant can hear or not can be determined by hearing screening. Infant hearing impairment not only affects the healthy growth of children, but also becomes a heavy burden on society. Currently, the main way to determine the hearing condition of infants is through hearing tests. Infant hearing test includes objective hearing test (physiological test) and subjective hearing test (behavioral audiometry). Currently, behavioral audiometry for infants and young children includes behavioral observation test, visual reinforcement audiometry, game audiometry, etc. Physiological tests include evoked otoacoustic emissions, auditory homeostatic evoked responses, acoustic conductance and acoustic reflexes, etc. In addition to this, infants should be observed during normal life. In addition, the baby’s reaction should be observed in ordinary life. When the hearing test result is not passed, it suggests that the baby has hearing problems and should go to the regular hospital in time and follow the doctor’s instructions for treatment.