The utility model discloses an intelligent temperature controller of a railway vehicle. The utility model relates to the technical field of railway vehicles, the intelligent temperature controller isrealized based on a single-chip microcomputer. A plurality of paths of temperature control channels are integrated to control the temperature of complicated vehicle components in the rail vehicle; theintelligent temperature controller special for the railway integrates temperature collection, temperature control and heating power output, ultramicro centralized temperature control can be achieved,and therefore the running temperature of a vehicle assembly can be conveniently, rapidly and effectively controlled, normal work of the vehicle assembly is guaranteed, and normal and reliable runningof a railway vehicle in a low-temperature environment is guaranteed.