BEIJING, June 15-- The Chairman of the All-China Federation of Trade Unions (ACFTU) Li Jianguo said unions at all levels should provide better services for the migrant workers on Monday.

The trade unions must enhance their publicity among the migrant workers and include as many migrant workers into the unions as possible, Li said at a plenary meeting of the presidium of the ACFTU.

The ACFTU meeting was held to review the work of the first half of the year and lay out the assignments for the second, according to a statement from the ACFTU.

By the end of 2014, the number of migrant workers in China stood at about 274 million, one-fifth of the country's population.

Li urged the trade unions to focus on grassroots and have a clear-cut stance on protecting the legitimate rights and interests of the workers.