This chapter introduces the development and classification of parking system, vehicles suitable for mechanical parking system, development trends and selection of mechanical parking system, and technical standards and specifications. Firstly, definitions, development in China and abroad, and classification and working principles are introduced. Secondly, the maximum dimensions and weight of vehicles suitable for parking are listed. Furthermore, development trends of mechanical parking system are introduced. Finally, based on demand analysis, site suitability analysis and economic analysis, methods for selection of mechanical parking system are introduced.