In the process of urbanization, when the urbanization rate exceeds 50%, the phenomenon of deceleration of urbanization will gradually appear. An indispensable strategic idea to stop the deceleration of urbanization is to accelerate the process of peasant workers' citizenization, a necessary to accelerate this process The measure is to build an information system and credit system for migrant workers. From this we can infer:. ['If we cannot stop the deceleration of urbanization, we will not accelerate the civicization of migrant workers.', "If the process of migrant workers' citizenization is accelerated, urbanization can be decelerated.", 'Without the construction of an information system and credit system for migrant workers, urbanization cannot be decelerated.', 'If the information system and credit system of migrant workers are set up, the process of citizenization of migrant workers can be promoted.']