Abstract: Migrant workers' citizenization is the main task of new urbanization. In the process of citizenlization for migrant workers, the government, enterprise and person need to pay the cost. This article takes Dongguan city,the most representative city in rapid industrialization area,as an example, calculates the cost of citizenization for migrant workers by enterprise and personal,and the results shows that they are 5 593 yuan and 38 467 yuan by calculating respectively. It points out that the enterprise and personal must bear partly responsibility for the citizenization of migrant workers, and improve the ability so as to make migrant workers integrate the development of urban economic and society.