To solve the problems of rotation resistance of a rotary shaft and a shape of blades for increasing torque and power generation efficiency, and thunderbolt damage in a former wind turbine generators.

This wind turbine generator is characterized by a shape increasing power generating force by retaining wind cup force in a shape of lift curve on an outer surface of a vertical shaft horizontal rotation blades for increasing torque and power generation efficiency of a wind turbine generator tool type, increasing power generation efficiency by reducing rotation resistance in a shape using a thrust ball bearing and magnetic repulsion force supporting the rotary shaft in parallel, and applying insulator on a wind turbine generator connection part and a fixed post for preventing thunderbolt.