Decorative plate support, decorative assembly component and vehicle

The utility model provides a decoration plate support, a decoration assembling assembly and a vehicle. The decoration plate support comprises a first branch, a second branch and a third branch, and the third branch is connected with the first branch and the second branch; wherein a clamping structure is arranged on the first branch part and/or the second branch part, a positioning structure is arranged on the third branch part, the positioning structure is used for connecting the decoration plate in the Z-axis direction and limiting the decoration plate in the X-axis direction and the Y-axis direction, and the clamping structure is used for connecting the decoration plate in the Z-axis direction and limiting the decoration plate in the Z-axis direction. By means of the arrangement, the independent support structure used for being matched with the trim panel is provided, the trim panel support can have the capacity of limiting and fixing the trim panel in a space coordinate system, the installation strength is