A reconfiguration scheme of protection logic and virtual interaction among protection equipments based on IEC 61850 is proposed. The protection logic nodes（LNs） in IEC 61850 have been encapsulated into the components by reference to IEC 61131-3. The traditional protection logic modules are designed as LN internal function blocks， and the signal interfaces are defined with the LN data of IEC 61850. The internal protection logics of protection LN components，the coordination among LNs as well as the virtual interaction relationships among devices with distributed function are described. The virtual connections among devices are added and the virtual input/output information of protections is constructed. Using the XML language， the configuration and interaction information for reconstructed protection devices are described. The design examples given show it is feasible. The new scheme can promote development and management of protection device; as well， it also gives some valuable supplements for the system configuration.