Introduction  In order to realize the standardized architectural design, factory processing and assembly construction for substations.

  Method  The control building of 500 kV substation was taken as the research object, and the location of its industrial facilities was specified according to the functional requirements of the substation. Through comprehensive consideration of process flow, functional requirements, building materials, building technology, natural conditions and other factors, the selection of building materials, structural type selection, modular design, fire prevention, energy saving and other aspects were comparative analysis.

  Result  The results show that the structure and wall integrated assembly system under the existing conditions is the most suitable for 500 kV substation.

  Conclusion  The structure and wall integrated assembly system is feasible and representative.