A three-dimensional warehouse, also known as an elevated warehouse or elevated warehouse, generally refers to a warehouse that uses shelves with several, more than ten, or even dozens of floors to store unit goods, and uses corresponding material handling equipment for goods warehousing and outbound operations.

Due to their ability to fully utilize space for storing goods, this type of warehouse is often referred to as a "three-dimensional warehouse".

Automated Storage System (AS/RS) is a revolutionary achievement in logistics technology, which generally consists of high-rise shelves, aisle stackers, conveyors, control systems, and computer management systems (WMS). It can complete automatic access operations for unit goods under the control of computer systems.