High and large formwork supporting structure for constructional engineering

The utility model relates to the field of building construction supporting structures, and discloses a building engineering high and large formwork supporting structure which comprises a threaded sleeve, a threaded block is in threaded connection with the interior of the threaded sleeve, and a plurality of sets of annularly-distributed telescopic rods are fixedly connected to the bottom of the threaded block. The output ends of the telescopic rods are fixedly connected to the bottom wall of the supporting sleeve and annularly distributed, a lifting rod is fixedly connected to the middle of the top wall of the threaded block, and a worm wheel penetrates through and is fixedly connected to the middle of the periphery of the threaded sleeve. According to the utility model, the motor is started, the output shaft of the motor rotates to enable the worm to rotate, so that the worm drives the worm gear and the threaded sleeve to rotate, and the threaded block in the threaded sleeve is fixed through the telescopic ro