Drawing on extensive fieldwork in Beijing and Tianjin, and applying a livelihood framework combined with a well-being perspective, this study examines an important aspect of rural-urban migrants" social protection in China, namely migrants" health, in particular work safety and occupational health. It argues that migrant workers" social rights to health and livelihoods are one of the fiercely contested domains of citizenship entailing aspects of exclusion, inclusion, and control and allocation of economic, social and political resources. The study shows that in spite of the accelerated pace of legislation and consolidated efforts to reconstruct the welfare system in China in recent years, the new social security schemes have thus far, by and large, failed to protect migrant workers in a systematic manner. The issues raised in the study therefore call for greater academic attention and more effective public policy responses.3 Acknowledgement: I am grateful to the British Academy for supporting the research