Abstract: Fire enclosure is usually adopted for isolating the mine fire area after the fire happened, in this case, the reserved holes are difficult to be sealed in a short time and the safety of the rescue personnel in the operation period of fire enclosure is difficult to guarantee, for solving this problem, a quick hole-sealing device was designed. The paper described the structure of this quick hole-sealing device, the operation procedures of quickly sealing holes, the anti-knock property of the device and the sealing test. This quick hole-sealing device has the advantages of simple manufacturing, explosion-proof, good tightness, convenient transportation and so on, the use of this device can complete the hole-sealing operation within 3 min to 5 min, which greatly improved the sealing efficiency and guarantee the safety of the hole-sealing operators.