The concept of 'sustainable welfare society' is highlighted in the social quality analysis, an approach that was extended from a European into an Asian developmental context. is article will expose the basic meaning and conceptual framework used for an analysis of the sustainable welfare society. On this basis, it will examine the postwar Japanese experience of public policymaking and, furthermore, explore the implications of this approach by the analysis of Asian cases and of developing economies. Accordingly, the idea of realizing sustainable welfare societies is discussed in the background of Japanese social policies in reference to the European context of development.