To provide a fall prevention device that excels in workability and that prevents a target object and a fixing surface from being scratched.

The device is equipped with a holding portion 3 for holding a stand S and a suction pad portion 4 that can be sucked to a fixing surface F, so that the stand S is easily fixed on the fixing surface F with a simple structure, preventing a target object S from falling. Also, since the stand S is fixed on the fixing surface F through the fall prevention device 1, the stand S can be fixed thereon without being scratched. Furthermore, since the fixation to the fixing surface F is performed by suction of the suction pad portion 4, the fixing surface F is prevented from being scratched.