Objective: To study the unmet care needs of the disabled elderly and their influencing factors, and to provide a scientific basis for establishing and improving the long-term care security system in China. Methods: Taking the extended Anderson health behavior model as a theoretical framework, a Logit model was constructed based on the 2005-2018 Chinese Longitudinal Healthy Longevity Survey(CLHLS) data. Results: The unmet rate of life care needs of the disabled elderly showed a slow downward trend, but more than half of the disabled elderly's life care needs were still unmet. The less relative economic resources of the family, the worse the physical condition of the elderly, the higher the degree of disability, and the more difficult it is to meet the living care needs of the disabled elderly when they are not cared for by children and spouses, or when the caregivers are reluctant. Conclusion: It is recommended to pay more attention to the life care of young age, low income and severe disability and the elderly in rural areas, strengthen the care of family members, and create favorable conditions for the care of family members.