The invention discloses a sliding distance mechanism and a sliding distance device. The sliding distance mechanism comprises a sliding distance rack, a clamping bottom plate and a sliding base plate,wherein the clamping bottom plate is slidably connected above the sliding distance rack; the sliding base plate is slidably connected above the clamping bottom plate; the sliding direction of the sliding base plate is consistent to the length direction of the sliding base plate; and the sliding direction of the clamping bottom plate is perpendicular to the sliding direction of the sliding base plate. According to the sliding distance mechanism and the sliding distance device provided by the invention, the structure is compact; before a plug plate is taken out, materials in a work bin can be slidden to one side far away from the plug plate, so that the materials adjacent to the plug plate are prevented from clinging to the upper part of the plug plate, the counterforce and the friction force between the plug plate and the materials are eliminated, the plug plate can be taken out smoothly, meanwhile, the damage on the materials in the plug plate take out process is further prevented, thematerial damage rate is reduced, and the profit can be maximized.