The invention relates to a centrifuging and paddle varying device of a wind driven generator. The centrifuging and paddle varying device comprises a paddle varying mechanism, wherein the paddle varying mechanism is arranged on a wheel hub; the wheel hub is mounted on a hollow shaft; the spring and a slide sleeve are arranged outside the hollow shaft in a sleeving manner; a stopping pull rod is arranged in a hollow main shaft 3 with a groove; the slide sleeve is provided with a sleeve groove; a bearing is slidingly arranged in the slide groove; a sliding shaft is connected with a bearing lengthening sleeve; the bearing lengthening sleeve is sleeved with a bearing inner sleeve; a bearing outer sleeve is fixed on the inner wall of the wheel hub; three synchronous wheels are mounted on the inner side of the wheel hub by synchronous shafts; any one of the synchronous wheels is connected with the bearing lengthening sleeve by a synchronous belt b to be transmitted; the synchronous wheels are synchronously connected and transmitted by a synchronous belt a; the outer side of the synchronous belt a is provided with a swinging shaft; the swinging shaft is provided with a swinging sleeve; one end of a swinging arm is mounted in the sleeve and the other end of the swinging arm is connected with a paddle in the paddle varying mechanism. According to the centrifuging and paddle varying device of the wind driven generator, the generator has a starting function and also has a paddle varying speed adjusting function and a drag reduction function through simple centrifuging and paddle varying.