The utility model relates to a cut the device, especially relate to a device is cuted fast in cable special use. The to -be -solved technical problem of the utility model is to provide a device is cuted fast in cable special use of labour saving and time saving, work efficiency height and convenient to use. In order to solve the technical problem, the utility model provides such device is cuted fast in cable special use which comprises there are support, slide rail, slider, removal frame, motor, gear, collection frame, uide bushing, lifter, cutting knife, cable, roof, conveyer, connecting rod, block, first rack and the second rack, support inboard bottom is equipped with the slide rail, and the slide rail top is equipped with the slider, and the slider top is equipped with the removal frame, removes frame inboard bottom and is equipped with the second rack. The utility model discloses reached that labour saving and time saving, work efficiency are high, convenient to use's effect to can prolong the life of cutting knife, all right the energy can be saved can not cause injury, safe and reliable to the human body moreover.