The invention relates to the technical field of mountain track cars, in particular to a mountain track and a mountain track car, which comprises a steel track, a main wheel set is arranged on one side, close to the steel track, of a seat area, an auxiliary wheel set is arranged on one side, close to the steel track, of a pedal area, and the main wheel set comprises an upper main rolling wheel, a lower main rolling wheel and a main wheel set mounting plate. The upper main rolling wheel is located on the side, close to the seat area, of the steel rail, the lower main rolling wheel is located on the side, away from the seat area, of the steel rail, and a
brake wheel is arranged on the outer side face of the main wheel set mounting plate and fixedly connected with the lower main rolling wheel through a shaft. By arranging two sets of braking systems which work cooperatively, namely the main wheel set side braking
assembly and the auxiliary wheel set side braking
assembly, the running safety and adaptability of the mountain track car are improved, the main wheel set side braking
assembly enables a lower main rolling wheel to stop rotating, and by combining the structural design of a main wheel set, the running safety and adaptability of the mountain track car are improved. The
friction force between the main wheel set and the steel rail can be increased, and meanwhile the risk existing in direct braking is avoided.