The invention discloses a heavy building pipe material clamping and lifting mechanism. The heavy building pipe material clamping and lifting mechanism comprises a base, a bottom supporting plate is fixed to the top face of the base, a vertical main plate is fixed to the top face of the rear portion of the bottom supporting plate, and an upper supporting plate is fixed to the top face of the vertical main plate; at least two vertical screw rods are located on the left side and the right side of the bottom supporting plate, the bottom end of each vertical screw rod is hinged to the bottom supporting plate, and the top end of each vertical screw rod is hinged to the upper supporting plate; driving motors are fixed to the left side and the right side of the top face of the upper supporting plate, an output shaft of each driving motor is a spline shaft, and each spline shaft is inserted into a spline hole formed in the top end of the corresponding vertical screw rod in a sleeved manner; and a moving block is connected in the two vertical screw rods in a screwed manner, a cross beam is fixed to the moving block, and a transverse through groove which backwards extends out is formed in the front wall face of the cross beam. The heavy building pipe material clamping and lifting mechanism can be installed on a pushing trolley and can be used for automatically clamping the two ends of pipe materials and lifting the pipe materials to the upper material receiving part of a building, the pipe materials can be artificially taken and installed conveniently, the artificial labor amount is greatly reduced, and the efficiency is improved.