The utility model relates to a GOOSE and SV common-network process layer network structure in a digitized transformer station, comprising a bus type network structure, a star type network structure and an annular network structure, wherein the bus type network structure is formed by cascading many exchangers, each exchanger being connected with many secondary devices or spacing devices; the star type network structure is formed by forming a network by a center exchanger and many secondary exchangers, which are connected together, each secondary exchanger being connected with many secondary devices or spacing devices; the annular network structure is formed by forming a ring by connecting many exchangers, each exchanger being connected with many secondary devices or spacing devices. The concrete connection method of the exchangers and the secondary devices is given. The GOOSE and SV common-network process layer network structure reduces the use number of the whole process layer exchanger by half, thus the construction cost of the digitized transformer station is greatly reduced.