a tree trunk;

a plurality of decorative branches;

two or more sets of hanging fittings arranged along an axial direction of the trunk, wherein each hanging fitting has a first end and a second end; and

one or more support rods provided along a direction of the decorative branch;

wherein the decorative branches are hung to the hanging fittings and arranged according to an arrangement of the tree-shaped decorations, the decorative branch is distributed with simulation decorations, a top of the decorative branch is provided with a hook, one first end of one of the hanging fitting is connected to the hook, and one second end of the one of the hanging fitting is connected to a corresponding support rod; and

wherein the support rod and the decorative branch are connected through a first ring buckle and a second ring buckle, the first ring buckle is set on the second end of the corresponding support rod, and the second ring buckle is set on the decorative branch at the connection position with the support rod, and the first ring buckle and the second ring buckle are fastened.