The invention discloses a construction drill pipe. The construction drill pipe comprises a drill pipe body, a spiral blade and a valve, wherein holes for placing pressure sensors are formed in the wall of the drill pipe, close to the upper part of the lower end of the drill pipe, the pressure sensors are placed in grooves on the left sides of sensor seats, the sensor seats are relative to the holes of the pressure sensors on the wall of the drill pipe, the sensor seats and the pressure sensors in the grooves are placed in protection covers, grooves which are matched with the hole walls of the pressure sensors placed on the drill pipe are formed in the upper ends of baffles, the baffles are inclined plates of which the upper ends are high and the lower ends are low, and keep off inner protective covers at the lower part, the pressure sensor seats, the baffles, and the inner protective covers and outer protective covers are fixed on the hole walls of the sensors on the drill pipe through screws. The construction drill pipe disclosed by the invention has the remarkable advantages of timely finding that the valve of the drill pipe is not opened and ensuring the height of a pile head.