The invention provides an axial vacuum dynamic seal ring, which consists of a plurality of seal rollers which are connected in series through a spring core (5). Each seal roller consists of a rubber sleeve (1), a roller outer sleeve (2), bearings (3), a roller inner sleeve (4) and the spring core (5), wherein the rubber sleeve (1) is wrapped outside the roller outer sleeve (2); and two bearings (3) are arranged between the roller outer sleeve (2) and the roller inner sleeve (4). The axial vacuum dynamic seal ring realizes the axial vacuum dynamic seal of a rough surface and can avoid the distortion phenomenon generated when the integral-type seal ring rolls on the surface of a pipeline; when one seal roller fails, only the failed roller needs to be changed so as to reduce the use cost; the seal ring can be applied to the change of the diameter of the seal surface in a larger tolerance range; and pure rolling is generated between the seal ring and the rough surface to avoid the larger wear of the seal ring.