Abstract: The migrant workers are a new vulnerable group emerged under the social background of the dualistic social construction and the rapid transition of society.Their development is associated with the stability of the society, one of the important issues of the construction of harmonious society.Nowadays, although their living conditions have been analyzed from different angles, their health issues haven't been attached importance.This paper analyzes the health problems of migrant workers based on the theory of social capital, and then table a proposal to enhance their social capital.