This paper explores the typological attributes, practical characteristics, and policy connotations of Christian social service organizations in present China. This is achieved from the perspectives of religion, public administration, social work, and history. Data collection and analysis are based on the literature research and field research methods. The main points are as follows: (1) Christian social service organizations are simultaneously faith-based organizations, legal-person organizations, and professional organizations. These different types of characteristics put forward different requirements for their service functions and performance standards. It is necessary to understand their corresponding boundaries in theory and coordinate or optimize their corresponding functions in the system; (2) Christian social service organizations present the characteristics of pluralism and transition in the practice process, as well as form complex symbiosis and embedded relationships with non-religious professional service systems. Further, they have begun to reach a consensus on industry codes of practice, service concepts, and clinical models, especially in regard to the culturally sensitive service centered on the clients; and (3) the triple-type attributes of Christian social service organizations require government departments and professional circles to direct more attention to the “matrix” of policy tools—in other words, formulate more discerning and diverse policy measures in line with policy objectives, as well as strengthen the legalization of the policy implementation mechanism and the level of collaborative governance of religious social service organizations.

China’s religious social services complement the statutory welfare. Clarifying the situations and characteristics of different types of religious social services is conducive to promoting their better integration into public welfare. With the help of existing policy texts, research documents, and website data, this paper employs the thematic framework analysis method to analyze texts and documents and uses NVivo12 and SPSS26 to analyze website data. We explore the similarities and differences between contemporary Chinese Protestant social services and Buddhist social services from the perspectives of the service program, service organizations, and service resources, starting from multiple dimensions such as vertical and horizontal, similarity and difference. The main findings include the following: (a) In terms of service programs, Protestant social services are more inclusive than Buddhist social services and more public in terms of participant selection, religious environment, and the use of spiritual methods. Protestant social services are more open in terms of service value and public expression, while Buddhist social services are more localized and are politically consistent with the government. (b) In terms of service organizations, Protestant social services and Buddhist social services are based on three main types of legal persons. Protestant social services were the first to register organizational legal persons. Protestant social organizations differentiated into special service institutions and have core organizations with strong mobilization capabilities (CCC/TSPM). There is little difference between Protestant and Buddhist social services in private non-enterprise units and foundations (transparency index, business scope). (c) In terms of service resources, both Protestant and Buddhist social services rely on donations. The sources of funds for Protestant social services are more international, diversified, and market-oriented. In terms of government resource acquisition, Protestant social services actively “adapt”, while Buddhist social services passively “rely”.