There is a tendency of migrant workers flowing back to the counties，where more than 160 million migrant workers have been employed. They are generally older，less educated and skilled，with lower income but better access to public services. The county-level governments have promoted the citizenization of rural migrant workers through measures such as relaxing the restrictions on registering for permanent residence，strengthening housing security，and enhancing employment and entrepreneurship. However，there are some difficulties such as the lack of migrant workers’ willingness to settle down，the low quality of employment and the insufficient supply of public services. It is suggested that we should prioritize the pro-employment policies，strengthen the vocational skills training of migrant workers，supply more local jobs，promote the equalization of urban and rural basic public services，and construct a comprehensive evaluation system of citizenization，and so on.