Abstract: Electrical design oriented application research in BIM technology is relatively little, for this kind of situation, on the basis of Revit which is widely used at home and abroad, we built electrical equipment based on BIM platform. After studying parametric information model of electrical equipment, we used expansion method of Revit external API function and achieved the access of Revit objects, filtered, edited and created with Revit objects. We achieved the access of electrical equipment types, edited and created with Family API. Combined with SQL server, we realized Revit model elements data storage based on relational database. This platform can realise electrical equipment group, electrical equipment drag and importing family attributes. Through the actual case, the feasibility and reliability of the platform are verified.