Taiwan's international space has been constrained since it lost its seat at the United Nations in 1972. Its government has created alternative diplomatic channels to participate as an active member of the international arena, always pursuing its return to the United Nations system. In its quest for the expansion of its international space, through health diplomacy Taipei has sought to become an active member of the international health system. This aspiration opened an opportunity for its participation in the World Health Assembly (WHA), the maximum decision organ of the World Health Organization, a United Nations specialized agency. This article will examine the evolution of Taiwan's international space by considering Taipei's diplomatic practices, specially its health diplomacy approach and its participation at the WHA.