Rotary and liftable construction site cable support

The utility model provides a rotary and liftable construction site cable support which comprises a buckle, a rotary seat, a supporting table, a flash lamp, a telescopic rod, a sleeve, a locking button and a counterweight box, the buckle is arranged above the rotary seat, the rotary seat is arranged in the supporting table, the flash lamp is arranged on the side edge of the supporting table, the sleeve is arranged below the supporting table, the telescopic rod penetrates through the sleeve, and the locking button is arranged on the telescopic rod. A locking button is arranged at the bottom of the sleeve; a counterweight box is arranged at the bottom of the telescopic rod. The construction site cable support is more uniform in stress through a rotatable mode of the rotating seat, the construction site cable support is safer in the using process through the flash lamp, the height of the construction site cable support can be adjusted at will through the telescopic rod and the sleeve, the gravity center of the co