The utility model discloses a transmission structure for V-shaped sloped tracks, which comprises a wheel frame arranged at the bottom of an underbody, the bottom of the wheel frame is provided with a plurality of mounting grooves for mounting caterpillar bands, a plurality of parallel axles are arranged in the mounting grooves, a plurality of wheels are mounted on the axles, and are connected through the caterpillar bands, and the caterpillar bands are respectively in contact with working rails arranged on a V-shaped sloped track. The transmission structure for V-shaped sloped tracks solves the defect that conventional transmission structures have great impact on transport tracks and high requirement on the design of transport cars and are high in maintenance cost. The transmission structure for V-shaped sloped tracks can convert slope rolling into horizontal rolling, so that the impact of the wheels on each rail is decreased, and thereby the lives of the rails are prolonged; moreover, since the sloped track-wheel structure in the prior art is improved into the straight track-caterpillar band structure, the wheels of a car do not need to be redesigned according to the slope track, and other complex structures do not need to be designed to keep the angle of the slope track and the central line horizontal.