There are both legal and social reasons of universal overdue payment of farmer workers working in urban area. It is obvious to achieve better results that the action of administration policy is carried out to clear the overdue payment of the farmer workers. However, the long acting mechanism of guarantee system for the due-payment for the farmer workers should be fixed up. This guarantee system should be on the basis concerning the labor law about the relationship of employer and employee. The unified management mode is based on the dual modes between the relationship of employer and employee ...