Abstract: Diagnosis for GOOSE communication is provided. The embodiments of the present invention provide a method, an apparatus, a system and a computer program product of diagnosis for logic of a distributed application implemented based on Generic Object Oriented Substation Event (GOOSE). The method comprises: creating at least one logic diagnosis module based on a data model for the distributed application; obtaining GOOSE signal information; and executing the at least one logic diagnosis module based on the GOOSE signal information. According to the embodiments of the present invention, a feasible way is provided for diagnosing and/or analyzing the logic of GOOSE-based application online or offline.