A wind power generation system with turbofans includes an air supply system, a composite structure with a turbofan, several generator components, a control device, and an air passage well. The air supply system is configured to rise the wind which enters into the wind power generation system, and further wind which is raised drives the composite structure with a turbofan to rotate; an operating gear ring connected to the composite structure with the turbofan rotates with it, and then the rotating turbofan drives a small gear in a generator component which engages with the operating gear ring to rotate with high speed. The generator begins to generate electricity when a required rotary speed of an electric generating set is achieved.