The invention discloses a pair of pliers special for an optical fiber movable connector dust cap, and belongs to the technical field of pliers. The pair of pliers special for the optical fiber movable connector dust cap is characterized by comprising a left plier body and a right plier body, wherein the left plier body is symmetric to the right plier body, the left plier body is hinged to the right plier body in the middle of the left plier body and the middle of the right plier body, a jaw of the left plier body and a jaw of the right plier body are respectively provided with an arc face clamping opening, the arc face clamping openings are symmetric to each other, the inner walls of the arc face clamping openings are matched with the outer circumferential face of the optical fiber movable connector dust cap, and bottom supporting bosses are arranged on the inner walls of the lower portions of the arc face clamping openings. The inner side face of a plier stem of the left plier body and the inner side face of a plier stem of the right plier body are respectively provided with a limiting boss, and the limiting bosses are symmetric to each other and located below the position where the left plier body is hinged to the right plier body. When the pair of pliers special for the optical fiber movable connector dust cap is used, an operator can easily control the insertion depth and clamping force of the pair of pliers; due to the facts that the inner walls of the arc face clamping openings of the pair of pliers are matched with the outer circumferential face of the optical fiber movable connector dust cap, and the bottom supporting bosses support the bottom of the dust cap, it is ensured that the dust cap is in perfect condition, and the overhauling efficiency is improved.