Generic Object Oriented Substation Event (GOOSE) is the focus in the smart substation. The relation between the operation mechanism of GOOSE and the substation configuration document (SCD) is not clear yet. According to the problem, the format and issues of GOOSE configuration in the SCD are described firstly. Then, the operation mechanism of GOOSE is analyzed combining the document and configuration in the real smart substation application. On the basis, the allocation method matching GOOSE is proposed as well as the measure that judging one is right or wrong. Finally, the practical application shows that the study is rational and effective.