Aerated concrete thermal insulation external wall panel system and construction method thereof

The invention relates to an aerated concrete thermal insulation external wall panel system and a construction method thereof, and belongs to the technical field of thermal insulation external wall panels. The mounting structure comprises a base plate and further comprises a plurality of mounting beams, partition plates and air bags, the mounting beams are arranged on an outer wall at intervals in the horizontal direction, the mounting beams are T-shaped, guide plates with right-trapezoid-shaped sections are arranged on the upper sides of webs of the mounting beams, first containing grooves are formed in the tops of the guide plates, and L-shaped clamping plates are arranged on the lower sides of the webs of the mounting beams; a first containing groove is formed in the clamping plate, a second containing groove is formed in the clamping plate, the partition plate is clamped between the two mounting beams, third containing grooves are formed in the two sides of the partition plate, the base plate is clamped be