Aiming at the current situation of imperfect infrastructure and late start of alpine snowboarding, a new type of balance training device for skiers was designed to provide training equipment for the combination of snow and land. The device has the characteristics of simple operation, reliability, safety and accuracy. It can realize ± 15 ° swing around X axis, 360 ° swing around Y axis and ± 30 ° swing around Z axis. The strength of the athletes' muscle groups can be strengthened, the destructive force on the body balance caused by the change of the angle can be overcome, and the athletes' body balance ability and the control ability for the skis blade can be improved through the training on the balance train device. In addition, the finite element analysis of the transmission shaft, which is the key transmission part of the balance training device, showed that the maximum stress was 186MPa and the minimum safety factor was 3.36, which meet the use requirements.