Assembly external wall heat insulation system and assembly method of assembly external wall heat insulation system

The invention relates to an assembly external wall heat insulation system and an assembly method of the assembly external wall heat insulation system, and belongs to the field of building external wall heat insulation. The assembly external wall heat insulation system mainly comprises a heat insulation material, a support seat, a keel, a wedge-shaped gasket, a heat insulation pad, a panel clamp element and an external wall panel, wherein the heat insulation material is connected to a wall body, the support seat is fixedly arranged on the wall body and is connected with the keel, and the panel clamp element is used for supporting the external wall panel and is connected with the keel. The assembly method comprises the following main steps that the support seat is fixedly arranged on the wall body, then, the heat insulation material is fixedly arranged on the wall body, the keel is fixedly arranged on the support seat, the panel clamp element and the external wall panel are installed, and then, gaps are sealed. The heat insulation material filling mode in the external wall heat insulation system can avoid the negative air pressure effect, the external wall heat insulation system can realize the horizontal, transverse and vertical three-dimensional adjustment in all angles, the panel installation position and the flatness are ensured, the field installation mode is adopted, the field construction efficiency can be improved, and the construction period is shortened.