The invention relates to a narrow-gauge train bogie which comprises a framework. Two wheel sets, a traction device, two traction motors, two gearboxes, a primary suspension device, a secondary suspension device and a foundation brake device are arranged on the framework. The primary suspension device is composed of a steel spring and a rocker arm type axle box, the rocker arm type axle box is connected with the framework through the steel spring, each wheel set comprises a wheel axle and wheels fixed to the two ends of the wheel axle, the wheel axles are connected with the rocker arm type axle box, the secondary suspension device comprises an air spring, a side rolling resisting torsion bar and a height control valve, the air spring, the side rolling resisting torsion bar and the height control valve are arranged on the framework, and the foundation brake device is a wheel-mounted disc brake device. The components are optimized and are combined in a matched mode, performance parameters are optimized, and therefore the performance of the bogie is greatly improved. As is proved by the experiment, according to the narrow-gauge train bogie, the operating speed of a train can be 160km / h on a narrow gauge of 1076mm, and the narrow-gauge train bogie has good stability, comfort and safety performance.