The invention discloses a centrifugal spin friction damper. A rotating body (1) is most close to the circle center of an outer shell (5), a plurality of pin holes are evenly distributed in the circumferential direction of the rotating body (1), and the pin holes are connected with one ends of a plurality of guide pins (2) equal to the pin holes in number in a fastening manner; sliding holes are formed in the inner arc face of a centrifuge body (4), the centrifuge body (4) and the other ends of the guide pins (2) are installed and matched through the sliding holes, and free and relative slidingcan be achieved between the centrifuge body (4) and the other ends of the guide pins (2); through connection of the guide pins (2), the rotating body (1) drives the centrifuge body (4) to rotate coaxially; and a wearing ring (3) is installed between the centrifuge body (4) and the outer shell (5) and is in fastening connection with the inner wall of the outer shell (5). The centrifugal spin friction damper is exquisite in principle and structure; and when the inner rotating body rotates, the damping function is achieved through the effect of friction force between the centrifuge body (4) andthe wearing ring, and the beneficial effects of being simple in structure and easy to machine.