The invention discloses a combination type wind turbine blade and a wind generating set comprising the same. The butt end surfaces of two adjacent combination sections of the blade are connected with an inner flange plate and an outer flange plate respectively; the inner flange plate and the outer flange plate are in insertion fit with each other, and the side walls of insertion fit parts are intersected to form a plurality of rectangular grooves; each rectangular groove is divided into an upper section and a lower section through a front edge opening and a rear edge opening in the outer flange plate; the wind turbine blade further comprises a plurality of groups of wedge-shaped strips; a left wedge-shaped strip and a right wedge-shaped strip in each group of wedge-shaped strips are reversely inserted into the corresponding rectangular groove from openings in two ends of the same rectangular groove respectively and are in interference fit with the corresponding rectangular groove; positioning plugs are further fixedly arranged at the front edge opening and the rear edge opening. The combination type wind turbine blade is simple in structure, high in connection strength, high in reliability, easy, convenient and quick to mount, good in torsion resistance after connection, and good in pneumatic appearance; the manufacturing difficulty and the transporting difficulty of large-sized wind turbine blades can be reduced, the production cost and the transporting cost are reduced, the production efficiency and the transporting efficiency are improved, and on-site quick assembly is realized.