A wave-wind mutually supplementing power supply system for continuous power generation, comprising: a wave kinetic energy module, which is disposed on/in a sea and is adapated to generate electricity through the motion of sea water, the electricity so generated being combined with a wind power generation device for continuous power generation, and wherein: the wave kinetic energy module comprises a wave energy harnessing unit, a transmission shaft, a generator unit, a torque adjusting unit and an automatic control unit, wherein the wave energy harnessing unit is adapted to harness the kinetic energy generated through the motion of sea waves and the transmission shaft is intended to transmit the kinetic energy harnessed by the wave energy harnessing unit to the generator unit, and wherein the generator unit is adapted to receive the kinetic energy transmitted from the transmission shaft and convert it to electricity and the torque adjusting unit is disposed on the transmission shaft so as to adjust the torque of the latter, and wherein the automatic control unit has a microprocessor and a sea water motion sensor unit so as to control the activation of the generator unit and adjust the torque of the transmission shaft according to the motion of the sea water; characterized in that the generator unit comprises two generators with different wattages, wherein when sea waves move in smaller amplitudes, the automatic control unit would only activate the generator with the smaller wattage so as to achieve higher power generation efficiency at lower torques, and when sea waves move in larger amplitudes, the automatic control unit would switch to activate the generator with the larger wattage so as to achieve higher power generation efficiency at higher torques, and as sea waves move in even larger amplitudes, the automatic control unit would activate both of the two generators. the wave kinetic energy module comprises a wave energy harnessing unit, a transmission shaft, a generator unit, a torque adjusting unit and an automatic control unit, wherein the wave energy harnessing unit is adapted to harness the kinetic energy generated through the motion of sea waves and the transmission shaft is intended to transmit the kinetic energy harnessed by the wave energy harnessing unit to the generator unit, and wherein the generator unit is adapted to receive the kinetic energy transmitted from the transmission shaft and convert it to electricity and the torque adjusting unit is disposed on the transmission shaft so as to adjust the torque of the latter, and wherein the automatic control unit has a microprocessor and a sea water motion sensor unit so as to control the activation of the generator unit and adjust the torque of the transmission shaft according to the motion of the sea water; characterized in that the generator unit comprises two generators with different wattages, wherein when sea waves move in smaller amplitudes, the automatic control unit would only activate the generator with the smaller wattage so as to achieve higher power generation efficiency at lower torques, and when sea waves move in larger amplitudes, the automatic control unit would switch to activate the generator with the larger wattage so as to achieve higher power generation efficiency at higher torques, and as sea waves move in even larger amplitudes, the automatic control unit would activate both of the two generators.