The training of migrant workers relates to the quality improvement and income increase of migrant workers and the process of rural urbanization，and is an important measure to solve the issues relating to agriculture，rural areas and rural people and realize the grand goal of building a moderately prosperous society in all respects. At present，the training of migrant workers in China is a model of welfare triangle. However，due to the autonomy of the state，the market and the family，this model has the tension of disintegration. Therefore，to achieve effective coordination of the welfare triangle，it is necessary to eliminate the autonomy that is not conducive to the training of migrant workers in the welfare triangle，and use the means of financing and regulation to strengthen the integration of the welfare triangle，thus building a long-term mechanism conductive to the cooperation between the state，the market and the society.