Self-orienting solar power generation device

The invention provides a self-orienting solar power generation device which comprises a main body provided with a solar cell panel and is further provided with a photometric system for metering the maximum light intensity direction. The main body is rotatably connected with a mounting platform and is connected with an orienting driving motor in a driving mode, the photometric system comprises a photometric platform installed at the top of the main body, the photometric platform is in the shape of a cylinder or a semi-sphere, a plurality of optical sensors are installed on a side surface of thesame plane height of the photometric platform, a control circuit of the orienting driving motor compares light intensity signals or temperature signals from different optical sensors, and when the optical sensor with the maximum light intensity signal or temperature signal is not the intermediate optical sensor, the position of the intermediate optical sensor is rotated to the position of the optical sensor with the maximum light intensity signal or temperature signal. According to the irradiation direction of sunlight, the self-orienting solar power generation device can automatically regulate the orientation of the solar cell panel in order to be furthest irradiated.