China's migrant workers are farmers from the countryside looking for jobs in the cities. They power the country;s fast growing economy by working in construction sites, foctories, restaurants and home services industry. There were reportedly 167 million migrant workers in China kast year. The huge group often faces various problems such as pay arrears and a lack of workplace injury compensation, health care and schooling for their children. In recent years, the Chinese goveronment has been Improving migrant workers' rights.