The invention discloses a special climbing device for military training, which comprises a bottom plate, a support rod, a spray head, a support frame, an avoidance hole, an adjusting plate, a push plate, a ladder seat, a guide sleeve, a sliding rod, an adjusting seat, a rack plate, a rotating shaft, a first gear, a gear sleeve, a second gear, a baffle plate and a spring. The special climbing device for military training is simple to operate and powerful in function. Firstly, the difficulty of climbing training can be conveniently adjusted by a training instructor through a sliding type adjusting design, the climbing training requirements of different degrees are met, the practicability of military training is expanded, secondly, the climbing difficulty of training personnel can be increased through the matching effect of the rainy day simulation mechanism, and finally, the special climbing device for military training is beneficial to the popularization and application of military training.