The invention discloses a cooling fan bottom damping device applied to Hooke law, and relates to the technical field of fans. The cooling fan bottom damping device applied to the Hooke law comprises atransverse plate, wherein fixing mechanisms are arranged on the transverse plate, moving wheels are movably arranged at the bottom of the transverse plate, and a damping plate is arranged above the transverse plate. According to the cooling fan bottom damping device applied to the Hooke law, through cooperative use of damping boxes, reset springs, movable plates, connecting rods, connecting blocks and damping springs, when a fan is started for use, vibration can be generated during work of the fan, and then vibration generated by the fan is damped, so that damage to internal parts of the fandue to long-time vibration is reduced, repair and maintenance of the fan in a short time is reduced, noise generated during vibration of the fan is also reduced, the influence of noise generated by the fan on hearing of people around due to loud volume is reduced, the working environment used by people is guaranteed, and the practicability of the damping device is enhanced.