Intelligent preparation is an important part of achieving intelligent locomotive operation, intelligent vehicle management, and intelligent operation and maintenance. It serves as a link between the operation and maintenance of locomotives and rolling stocks, and is a crucial link in the digital, informational, and intelligent transformation of railway operation and maintenance. The intelligent preparation depot for locomotives is implemented through an overall solution with a "1 + 8 + N" design architecture. That is, "1" core management and control platform (Integrated Management and Control Platform for Locomotive Preparation), "8" major subsystems (Integrated Intelligent Management and Control System, Safety Protection System, Multi-functional Operation Platform, Intelligent Distribution System, Wayside Intelligent Detection System, Ground Intelligent Detection System, On-board and Ground Analysis System, Big Data Analysis Platform), and "N" key intelligent equipment (Roof Inspection and Cleaning Robot, Under-car Intelligent Patrol Inspection Robot, Sanding Robot, etc.).