Basic medical services are essentially private products. The right to health having been enshrined in law transforms basic medical services to fictional public products, rather than public products or quasi-public products. The difference between basic medical services and non-basic medical services is the prerequisite for basic medical services to become fictional public products. Health’s developing from a personal matter into the government’s legal obligation provides primary legal ground for basic medical services to become fictional public products. Hierarchical medical system is the government’s practice to fulfill its obligation of providing basic medical services which have become fictional public products. The legislative experience of typical countries such as the United States, Britain, Russia and Germany provides a reference for the government supply of basic medical services as fictional public products on the basis of universal medical insurance.