The invention discloses a multi-degree-of-freedom adjustable swing type power generation system. The multi-degree-of-freedom adjustable swing type power generation system comprises a floating energy rectifying module, an energy storage control module and a degree of freedom adjustment module; the output end of the floating energy rectifying module is connected with the input end of the energy storage control module; the degree of freedom adjustment module is arranged on the energy storage control module; the floating energy rectifying module comprises an energy collection plate, a cross shaftand a rectification gear box; the energy storage control module comprises a motor box; a generator is arranged in the motor box; the energy collection plate is connected with the input end of the rectification gear box through an energy collection shaft; and a motor shaft of the generator penetrates out of the motor box and is connected with the output end of the rectification gear box. Accordingto the multi-degree-of-freedom adjustable swing type power generation system, the reciprocating action force of waves can be captured, swing of multiple degrees of freedom is made, the energy conversion efficiency is improved to the maximum, and the system can be efficiently applied to various scenes.