The disabling hearing-impaired are defined as those people with permanently hearing impaired which hearing impairment level is above 25dB, usually they cannot have daily conversation without hearing aids. To improve quality of health care for people with disabling hearing impairments, how to strengthen population monitoring system is one of the vital steps public health policies. This study aims to understand and analyze the trends and population with hearing-impairments and to analyze their disability causes based on Taiwan national disability population statistics. Results found that the population with disabling hearing impairments is increasing in the last decade, particularly in elderly age group. Main causes of hearing impairments included congenital, diseases, vocational reason, injury, and accident. This study provide a general picture of disabling hearing-impaired population, and the data will be useful for public health policy in the future.