The invention relates to the technical field of a dynamic environment and discloses a full-metal shock-insulating gasket. The full-metal shock-insulating gasket comprises a C-shaped steel strip, wherein a metal rubber ring is filled in the C-shaped steel strip; penetrated mounting holes are vertically aligned at upper lateral edge and lower lateral edge of the C-shaped steel strip; and inner circular gaps of the metal rubber ring are correspondingly communicated with the mounting holes. The full-metal shock-insulating gasket provided by the invention adopts a compound structure of the C-shaped steel strip with the metal rubber for reducing the shock magnitude; the compound structure is a pure metal product and can preferably adapt to extreme use conditions; a single shock-insulating gasket is low in weight; the structural rigidity is high; and after the full-metal shock-insulating gasket is used, the change in aircraft characteristics is small, and the shock-attenuating effect is excellent.