Through the comparative analysis on the theories and practical experience of the development of old-age care (OAC) in both China and other countries,and based on the interview and questionnaire survey in Zhejiang Province and Hangzhou City,this paper proposes the research and analysis framework for the old-age service system,i.e.,“OAC mode-OAC service system-OAC facility system.” The paper argues that,oriented by OAC mode of “taking community-and home-based care as the main body and institution-based care as supplement,” China should build an OAC facility system and planning thoughts that take “continuum of care” as concept and long-term care system as core.Taking Zhejiang Province and Hangzhou City as examples,the paper conducts the optimization research on current OAC facilities planning in terms of hierarchical system,scale,and differentiation,so as to formulate more systematic and operable planning standards for OAC facilities. Through the comparative analysis on the theories and practical experience of the development of old-age care (OAC) in both China and other countries, and based on the interview and questionnaire survey in Zhejiang Province and Hangzhou City, this paper proposes the research and analysis framework for the old-age service system, ie, “OAC mode-OAC service system-OAC facility system.” The paper argues that, oriented by OAC mode of “taking community-and home-based care as the main body and institution-based care as supplement, ”China should build an OAC facility system and planning thoughts that take “ continuum of care ”as concept and long-term care system as core. Published Zhejiang Province and Hangzhou City as examples, the paper conducts the optimization research on current OAC facilities planning terms in hierarchical system, scale, and differentiation, so as to formulate more systematic and operable planning standards for OAC facilities.