A flying object capable of being launched in air is detachably mounted on a wing body of a launching apparatus. The launching apparatus is towed by an aircraft through a cable so as to be run and taken off. After raising the launching apparatus to a launching height of the flying object by the aircraft, the flying object is released from the wing body in air and then the flying object is ignited and launched in air in a launching system. The system for launching in air can be developed without newly developing a platform as a mother ship so that a research cost can be remarkably reduced. In the case that a small artificial satellite is installed in a flying object, it is possible to develop an artificial satellite smoothly and quickly applicable to security matters and disaster observation.