The invention is suitable for the technical field of corrosion and protection of metal materials, and provides a fan blade device, wave making equipment and a wave making method. The fan blade devicecomprises a center bevel gear, a turbine blade, a driving bevel gear and a rotating shaft, wherein at least one side bevel gear is meshed with a side edge of the center bevel gear; the turbine blade is fixedly connected to the end, which is away from the center bevel gear, of the side bevel gear through a connecting shaft; the driving bevel gear is meshed with the center bevel gear and is used fordriving the center bevel gear to rotate; and the rotating shaft is coaxially and fixedly connected to the end, which is away from the center bevel gear, of the driving bevel gear and is used for applying rotating torsion of the driving bevel gear. According to the fan blade device, the wave making equipment and the wave making method, torsion is applied to the rotating shaft, the rotating shaft drives the driving bevel gear to rotate so as to drive the center bevel gear to rotate, the center bevel gear drives the side bevel gear to rotate so as to enable the connecting shaft to drive the turbine blade to rotate, then the inclination angle of the turbine blade is changed, the height and the amplitude of discharged air and splashed liquid of the turbine blade are controlled, and thus, control of the wind blowing or wave making mode is completed.