The invention belongs to the field of power generation and discloses a main and sub type wind power generation technology. The main and sub type wind power generation technology achieves the technical aims of changing a traditional power generation operating mode, lowering power generation cost and improving the utilization rate of power generation. Traditional power generation is generally carried out in an on-line power state, wind power generation units of the on-line power directly provide generated electric energy to users through the power grid, and the operating mode is low in utilization rate of power generation, complex in maintenance and management and high in manufacturing price. According to the working principle of the main and sub type wind power generation technology, electric energy generated by one or two wind power generation units, namely main machines for short is utilized for driving multiple ground power generation units, namely sub machines for short to operate for power generation, so that greater electric energy is generated, and more power resources are provided for the power grid and the users. The main and sub type wind power generation technology has the advantages that fewer power generation units are arranged in a wind power plant, the sub machines can be arranged on the ground for centralized management, equipment investment is simple, operation and management are convenient, the power generation rate is high, and the main and sub type wind power generation technology can be used for transforming existing wind power plants and can also be directly used for newly built wind power plants.