The utility model discloses a pliable and tough training auxiliary rod of aerobics exercises, including the auxiliary rod, the auxiliary rod is including setting up the spring cylinder in center department, the upper end of spring cylinder is equipped with the piece of backing up, and the lower extreme of spring cylinder is equipped with the supporting seat, back up the piece the lower extreme be equipped with first fixed cover, the utility model discloses the structure uses the spring cylinder to have fine elasticity as the auxiliary rod that the design of core vaulting pole formed, can establish rubber sleeve or sponge layer by selective cover on the spring cylinder, the great improvement of the in -process that is using like this the travelling comfort of auxiliary rod, can be fine in aerobics exercises training person's training process satisfy the pliability training in various degree that aerobics exercises training person pursue, simultaneously the upper and lower both ends of spring cylinder respectively the movable sleeve establish back up piece and supporting seat, can increase aerobics exercises training person's waist pliability training on the one hand, on the other hand can change the training position of spring cylinder, can be perfect agree with the flexible basic demand of aerobics exercises training person.