Abstract: This article established the data management integrated platform of electrical design based on Windchill according to the data management characteristics of electrical design for railway vehicles, implemented the seamless integration with electrical design tool E3, developed data management tool Windchill, material data management(MDM) system, Systems Applications and Products in Data Processing(SAP). It was realized the whole life cycle management of circuit diagram, BOM, and other electrical design data by the management system of electrical data, optimized the process of electrical design and the management of data flow, improved the efficiency of communication and collaboration.