Prestress construction device

The utility model discloses a prestress construction device which comprises a fixed base, a movable top seat, telescopic structures, a cable protection sleeve and a wire guiding device, the fixed base is buried underground, the movable top seat is in sliding connection relative to the fixed base, and the telescopic structures are provided with a first telescopic structure and a second telescopic structure. One ends of the two telescopic structures are connected to the fixed base, the other ends of the two telescopic structures are connected to the movable top base, the cable protection sleeve is fixed to the movable top base through screws, the cable protection sleeve is sleeved with the insulating sheath, and the wire guiding device is communicated with the second telescopic structure and the movable top base which is communicated with the cable protection sleeve. The beneficial effects are that the fixed pedestal is in threaded connection with the ground hook, the fixed pedestal does not fall into the groun