The invention discloses a basic structure for extra-high-voltage single-column guyed tower V-shaped stayguys. The basic structure comprises stayguys, a tower column connected by the stayguys, and a plurality of basic structure main bodies, wherein each basic structure main body comprises a base plate, an inclined main column fixed on the top surface of the base plate, a U-shaped stayguy rod of which one end is embedded into the inclined main column and the other end is exposed out of the top surface of the inclined main column, and a triangular connecting plate fixed on the exposed end of the U-shaped stayguy rod, the stayguys are fixed on the triangular connecting plate, two stayguys are arranged between each basic structure main body and the tower column in a V shape, the U-shaped stayguy rod is bent in the inclined main column, a bending line of the lower section is parallel to a geometric center line of the inclined main column, and a bending line of the upper section is parallel to a plane on which the two stayguys on the basic structure main body are positioned. The basic structure can be preferably matched with a V-shaped stayguy arrangement structure, the bearing requirement of an extra-high-voltage guyed tower can be satisfied, the quantity of foundations is reduced, the form is simple, and the basic structure is easy to realize.