The invention discloses an intelligent power generation system which comprises a plurality of intelligent wave power generation units, a bus, an inverter circuit, a chemical energy storing device or physical energy storing device, an energy storing management circuit, a load detection circuit, a central base station and a wave height meter, wherein each intelligent wave power generation unit comprises a wave energy capture device, a pole-changing multi-speed permanent magnet generator, a DC/DC converter, an intelligent controller, a floating body, a balance weight device, a bracket, a storm prevention mechanism, an anchor, a contactor switch, a rectifying circuit, a DC/DC converter, a speed measurement motor and a position sensor. The intelligent power generation system is applicable to waves of various shapes, the wave energy conversion is efficient, the power generation is stable, the generated power is high in quality, and the power generation system is intelligentized, strong in storm prevention capability, low in cost and easy to maintain.