China has the largest number of internal migrant workers in the world, estimated at well over 200 million and will likely swell to over 500 million by 2020. Although this mass migration has helped fuel China’s remarkable economic growth, it has also spawned severe social problems. Most notably, China’s “hukou” system circumscribes migrant rights and access to public goods and services such as legal services, healthcare, housing, decent employment, and education for children. These difficulties emerge from inherently lesser rights given to those with an “agricultural” hukou and further restrictions on those who have migrated away from the town where their hukou is registered. Migrant workers are particularly susceptible to exploitation by unscrupulous employers and are often subjected to harsh, unsafe, and illegal working conditions or short-changed on wages or other benefits – and sometimes not paid at all. In sum, despite the migrants’ large numbers, members of this societal “subclass” are routinely denied basic rights and often exploited by the labor market due to their lack of education, money, and knowledge of the law. The Migrant Justice Project is designed to help migrant workers by empowering the poor to understand, claim and realize their legal rights under China’s legal system.