The invention discloses an adhering method for a wind turbine blade of a wind driven generator. The method comprises the following steps: manufacturing a rear edge adhesion prefabricated piece, laying a blade skin shell, and adhering upper and lower side skins of the blade and a web plate. According to the adhering method for the wind turbine blade of the wind driven generator, the process design is reasonable; in particular, by the adoption of the rear edge adhesion prefabricated piece, as hard foam achieves an extremely good supporting effect in an adhesive extrusion process, the compressive deformation capacity can be improved; the problem that an adhesive layer in the rear edge region is too thick during blade adhesion in the prior art can be solved, and the blade quality and the working efficiency can be greatly improved.