This study used CMDS2018 data to conduct an empirical study on the urban social inclusion of elderly migrants from the welfare economics perspective. Regression results from fuzzy set theory and several other methods show that living with children positively affects urban social inclusion, while living with their daughters has a greater impact. Migration distance and family wealth negatively impact the urban integration of the elderly. In contrast, the impact of family cohabitation and the economic environment on elderly migrants is strengthened through urban inclusion mechanisms. A higher degree of urban inclusion can effectively mitigate negative effects and enhance positive effects. This study provides empirical evidence from the welfare economics perspective for the urban integration of elderly Chinese individuals with migration in economic transformation.