Trim strip installation structure assembly and automobile

The utility model discloses a trim strip installation structure assembly and an automobile. The trim strip installation structure assembly comprises a connecting support fixed to the edge of an automobile body side wall and a trim strip. The connecting support comprises a support body, multiple fixing parts and multiple installation parts, wherein the fixing parts and the installation parts are arranged in the first direction of the support body at intervals, the support body is fixed to the automobile body side wall through the fixing parts, and the first direction is identical to the extending direction of the edge of the automobile body side wall. The trim strip is fixedly connected with the connecting support through the installation parts. By the adoption of the trim strip installation structure assembly and the automobile, the connecting support is additionally arranged, a trim strip body is installed on the connecting support instead of being directly installed on the automobile body side wall, the trim strip is installed more stably, the trim strip installation structure assembly is simple in structure and easy to install, installation reliability and installation efficiency are guaranteed, and meanwhile manufacturing cost is guaranteed.