Fabricating and installing method of wind turbine generator by using drill hole

PURPOSE: A method for assembling and installing a wind power generator by using a perforated hole as a pre-assembling space is provided to minimize high place work as a nacelle and a blade are assembled to the upper part of a tower in advance. CONSTITUTION: A method for assembling and installing a wind power generator(10) by using a perforated hole as a pre-assembling space comprises the following steps. The ground is excavated. A tower is inserted into a perforated hole in a state where the upper part of the tower(11) protrudes towards the outside of the perforated hole(20). A nacelle(12) and a blade(13) are assembled to the upper part of the tower, and an assembly of the wind power generator is completed. The assembly of the wind power generator is drawn out from the perforated hole, and transferred to the installation position. [Reference numerals] (a) Underground assembly; (b) Field installation