Abstract Background The unmet Healthcare needs (UHNs) of the disabled are not only detrimental to their quality of life but also can lead to serious health outcome including death. A variety of factors including socioeconomic, personal, environmental factors affect UHNs for the disabled. Methods We analyzed the UHNs status and influencing factors among 4,326 adult the disabled using Korea disability Life Data. Chi-square analysis was conducted to identify differences in UHNs according to characteristics of general, disability, environmental of the disabled. Logistic regression analysis was conducted to determine factors affecting UHNs. Results Those with low educational level (aOR=1.23, 95% CI = 1.02-1.48), those enrolled in private insurance (aOR=1.23, 95% CI = 1.02-1.50), those need help with daily living (aOR=1.30, 95% CI = 1.06-1.59), those who rarely go out (aOR=1.57, 95% CI = 1.27-1.92), those who use taxis (aOR=1.41, 95% CI = 1.05-1.89) or call taxi for the disabled when going to the hospital (aOR=1.37, 95% CI = 1.01-1.88), the communication disabled (aOR=1.30, 95% CI = 1.03-1.65), those with poor subjective health status (aOR=1.25, 95% CI = 1.04-1.49), those felt the explanation of treatment results was insufficient (aOR=4.04, 95% CI = 1.37-11.93), and those dissatisfied with healthcare services (aOR=3.52, 95% CI = 2.74-4.51) were more likely to experience UHNs. Conclusions Effective healthcare service provision for the disabled requires not only financial assistance but also social support, along with education for healthcare staff, policies with the characteristics of disabilities. Funding: This research was supported by a grant of Patient-Centered Clinical Research Coordinating Center (PACEN) funded by the Ministry of Health & Welfare, Republic of Korea (grant number: HC23C0165) and by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. RS-2024-00394642) Key messages • The disabled need not only financial support when using healthcare services, but also support from society, such as accompanying them to the hospital and providing transportation. • Education for healthcare staff who communicate with the disabled and provision policy to provide appropriate healthcare services according to the characteristics of disabilities are needed.