The invention relates to an intelligent management system and a method for rural migrant workers. According to the technical scheme of the invention, a system function module is used for the role authorization management, the identity authentication, the short message notification, the instant message (IM) service, the event management, the data processing, the assembly service and the interface service. A wage management is used for the management of the wage payment information of rural migrant workers. A construction site management module is used for the access to a third-party site staff positioning system and the information sharing service. A project management module is used for the management of the project process, the project management, the construction part management and the project type management. A system management module is used for the authority management, the company management and the user management. A report management module is used for the extraction of required caliber data out of the project management module. A management module is used for the storage and the management of the scanning copies of original documents containing the signature and stamp information. A handset APP module is used for scanning two-dimensional codes on the information cards of rural migrant workers. An exit management module is used for the exit management of rural migrant workers. Based on the above system and the method thereof, the management of rural migrant workers is standardized and normalized.