The present invention relates to a system for operating a flying object that is flown from the ground. The flying object operation system includes a flying object that is filled with a gas therein to stay in the sky, a ground unit installed on the ground, a wire unit connecting the flying object to the ground unit, and a buoyancy-generation unit disposed on a side of the flying object to obtain buoyancy through friction with air, thereby transferring the obtained buoyancy to the flying object. In the present invention, since additional wind-derived buoyancy obtained by the buoyancy-generation unit connected to the flying object is further generated, sufficient buoyancy may be supplied to the flying object in a high-altitude environment to stably operate the flying object. Also, since power generated by using the wind power generation unit is transmitted to the ground through the wire unit, the flying object operation system may be utilized as wind power generation equipment.