Objective:To explore the mechanism of factors affecting the long-term care needs of disabled elderly in elderly care institutions, and provide basis for taking targeted nursing intervention.Methods:From July to November 2018, convenience sampling method was used to conduct cross-sectional survey of the current situation and influencing factors of long-term care needs of 508 disabled elderly people in 10 elderly care institutions in Baoding City by general information questionnaire, Barthel index, the Long-term Care Needs of the Disabled Elderly in elderly care institutions, the Questionnaire on the Factors Affecting the Long-term Care Needs of the Disabled Elderly in elderly care institutions. SPSS 21.0 was used for correlation analysis and multiple regression analysis, and AMOS 24.0 was used for model fitting, path and mediation effect analysis.Results:The score of long-term care needs of the disabled elderly in elderly care institution was (105.04 ± 21.68) points; the scores of intra-personal, interpersonal, and extra-personal factors were (16.93 ± 5.20) points, (10.51 ± 3.39) points, (19.80 ± 6.24) points, respectively. Intra-individual factors, interpersonal factors, extra-individual factors and care needs were all positively correlated ( r values were 0.222-0.645, P<0.05). Intra-individual, inter-personal and extra-individual factors could directly affect the long-term care needs of the disabled elderly ( β=0.455, 0.527, 0.403); intra-individual and inter-personal factors had independent mediating effects and chain mediating effects between extra-individual factors and the long-term care needs of the disabled elderly, and the effects were significant, with effect value of 0.078, 0.095 and 0.023, accounting for 15.15%, 18.45% and 4.47% of the total effect, respectively. Conclusions:Each influencing factor has a strong ability to predict and explain the long-term care needs of the disabled elderly, and nursing staff could meet the care needs of the disabled elderly according to different influencing factors.