Abstract: A ski board device includes a beam having two hubs disposed on the two ends. A pair of ski boards each includes a shaft extended upward and engaged upward through the hubs so as to allow free rotation in the hubs. A pair of foot supports secured on top of the shafts and rotated in concert with the shafts such that the foot suports are freely rotatable for changing the moving direction of the ski board device. Each of the foot supports includes an upwardly arched toe stirrup and a rearwardly arched heel stop for engagement with a foot of a user.