In response to increased population aging situation, the main purposes of this study are: (1) to analyze the requirements of elderly care on individuals, families and society, (2) to review the decision-making alternatives in aspects of health care, living arrangement and economic factors among home cares for the elderly, and long-term care centers for the elderly (3) to examine the service quality lag between elderly care alternatives, (4) to propose feasible decision-making methods for the service quality of elderly cares. This paper proposes a combined QFD and AHP method to find out the most important relative elderly care services. Through brainstorming process and analyses, the recommendations we made might be helpful to re-enforce the quality service in terms of elderly care system that we anticipate it can improve the integral families quality.