Wind turbine blade adopting serrated blade tip tail edge structure and wind turbine

The invention relates to the technical field of wind power generation, particularly to a wind turbine blade adopting a serrated blade tip tail edge structure. The wind turbine blade comprises a blade body, wherein the blade tip tail edge of the blade body is serrated. The invention further provides a wind turbine which comprises the blade serrated in blade tip tail edge, an air guide cover, an electric generator, a controller, a storage battery, an inverter and a current load. According to the wind turbine blade adopting the serrated blade tip tail edge structure, a groove is formed in the tail edge part of the blade tip of the horizontal shaft wind turbine, so that the tail edge of the blade tip is serrated, the design of the blade tip structure is improved under the premise that the cost is not increased, the process is simple, the cost is low, and the integrated design and scale production are facilitated; meanwhile, under the condition that the output power is basically constant, the blade tip noise of the wind turbine is reduced, the fatigue degree of the blade is reduced, and the service life of the wind turbine is prolonged.