Abstract: Disclosed is a power-adjustable wave power generator, comprising a support platform (1), a power generator (2), a rotary shaft (3), an impeller rod (4), a blade frame (6), blades (7), a synchronous movement mechanism and a lifting mechanism. The power generator (2) is arranged on the support platform (1) and connected to the support platform (1). The impeller rod (4) is radially connected to the rotary shaft (3). The blade frame (6), which is provided with several blades (7), is slidably connected to the impeller rod (4). The synchronous movement mechanism adjusts the distance of the frame (6) relative to the rotary shaft (3). The lifting mechanism adjusts the angle of the blades. The power generator can not only effectively generate power under the condition of small waves, but also can adjust extracted energy according to a full load of power generation when a wave force remains unchanged, and can automatically prevent a disaster under the condition of a catastrophic climate.