Locomotive Depot is the main traffic department of railway transportation system, which is mainly responsible for the operation, comprehensive overhaul and comprehensive maintenance of railway locomotives. Simply put, the locomotive depot is responsible for driving and overhauling trains, and belongs to the first-line driving unit.

The locomotive depot includes:

1. Locomotive workshop: responsible for locomotive operation and comprehensive maintenance.

2. Maintenance workshop: responsible for locomotive maintenance.

3. Servicing workshop: responsible for locomotive servicing operation.

4. Equipment workshop: responsible for the maintenance of equipment in the locomotive depot.

5. Functional department: responsible for the administration, technology and equipment management of the locomotive depot.

The locomotive depot is generally located near an important railway hub city or an important freight marshalling station, and is mainly responsible for the power traction task or special transportation task of passenger trains, cargo trains and baggage trains.