The declining birth rate is impacting countries worldwide. Factors such as ideological perspectives, economic wealth accumulation, improved education levels, family issues, and societal unrest have affected the overall environment, making it difficult for the global fertility rate to increase. This article focuses on Sweden and Japan, exploring the core characteristics of their welfare systems, with a particular emphasis on their childcare policies. Through cross-national comparisons, the article highlights the differences and unique features of the main welfare states in different regions. Using Esping-Andersen's theory as a reflection, this article aims to enrich social welfare theory and provide reference for Taiwan's childcare policy-making.