The invention discloses a multifunctional static floor suction disc for a machine room. The multifunctional static floor suction disc comprises a vertical tube and a limiting device, wherein a transverse tube is arranged at the bottom end of the vertical tube, suction disc brackets are arranged at the bottom end of the transverse tube, suction discs are arranged at the bottom ends of the suction disc brackets, a transverse rod is arranged in the transverse tube and is in sliding connection with the transverse tube, driving rods are arranged on the transverse rod, the number and the positions of the driving rods correspond to those of the suction discs, metal discs are arranged at one ends, far from the transverse rod, of the driving rods and are connected with the suction discs, and an operation rod is arranged on one side, far from the suction discs, of the transverse rod; and the limiting device is used for fixing the operation rod. The multifunctional static floor suction disc for the machine room has the beneficial effects that the suction discs and the vertical tube are mutually matched for use, a floor can be lifted at any time and does not need to be pried by virtue of a crowbar or a screwdriver, and an operator can work without stooping down and can conveniently and rapidly move the floor, so that the manpower and the time are saved, the labor efficiency is improved, and meanwhile, the damage to the floor is alleviated.