The invention belongs to the technical field of building seismic isolation supports, and discloses an anti-overturning friction pendulum seismic isolation support and an assembling method thereof. Thesupport has the main technical characteristics that the support comprises an upper support plate and a lower support plate, wherein the upper surface of the lower support plate is provided with a lower swing body which is composed of a lower swing body bottom plate, a spherical hinge body and a spherical hinge cover plate, the upper part of the spherical hinge body is a column head, the lower part of the spherical hinge body is a sphere, the lower swing body bottom plate is provided with a transverse lower guide strip, the lower support plate is provided with a lower tensile guide rail, the top surface of the lower swing body bottom plate makes spherical contact with the sphere, the sphere makes spherical contact with the inner wall of the spherical hinge cover plate, the spherical hingecover plate is connected with the lower swing body bottom plate through a positioning bolt, an upper swing body is arranged at the lower surface the upper support plate, the upper swing body is provided with a longitudinal upper guide strip, the upper support plate is provided with an upper tensile guide rail, and a column hole at the lower end of the upper swing body is connected with the columnhead through a thread. According to the anti-overturning friction pendulum seismic isolation support, the universal horizontal slippage can be achieved, the high pressure and high tension in the earthquake can also be borne, and overturning damage of the building is prevented.