This study investigated integrated elderly care services supply chains using a combination of Decision Making Trial and Evaluation Laboratory (DEMATEL), Interpretative Structural Modeling (ISM), and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), The research identifies the key factors related to the emergency response capabilities of elderly service supply chains and the most important ways to improve them. The integrated DEMATEL-ISM-TOPSIS method provides new theoretical support for the management of elderly care service supply chains.