Objective: To establish the long-term care high quality development index evaluation system，and provide references for actively responding the aging problem. Methods: Based on the principles of demand orientation，quality and balance，common construction and sharing，and scientific and operable，the long-term care quality development index was constructed based on a combination of expert opinions and actual conditions，and validated with the long-term care development in Ningbo from 2015-2021. Results: The evaluation system of the long-term care quality development index was established with the development resources and security index，the development equity and efficiency index，and the development effectiveness and efficiency index as the primary indicators，including 9 secondary indicators and 28 tertiary basic indicators，and the evaluation results show that the Ningbo long-term care quality development index showed a significant upward trend between 2015 and 2021，with individual indicators showing an uneven distribution，which is basically in line with the actual situation. Conclusions: The long-term care high quality development index is a scientific and effective quantitative management means，which deserves to application in a large scale.