At present, The country is committed to the research of high-speed maglev technology for long routes line. Due to the significant increase in speed and length, it is necessary to study the propulsion and power supply system for high-speed maglev railway. The research and engineering design of propulsion substation, track-side substation, stator switch station, propulsion control system are important parts of the research of propulsion and power supply system for high-speed maglev railway. Combining with the design of Qingdao 600 km hig-hspeed maglev test line, this paper analyzes the main circuit diagram,general layout, propulsion control system of high-speed maglev railway propulsion substation, track-side substation and stator switch station, and introduced the interface design scheme between propulsion substation specialty and specialties such as overhead contact system, station yard,geology, HVAC, water supply and drainage, geophysical exploration, architecture, distribution, communication and operation control, It will be helpful to accumulate experience in the degisn of high-speed maglev railway propulsion substation.