The invention discloses an automobile rear support frame and an automobile. The rear support frame comprises a sheet metal main body, wherein the sheet metal main body comprises: a vertical support plate, a top cover support plate bent relative to the vertical support plate along a first crease of the sheet metal main body on an upper side of the vertical support plate, an inclined connecting plate that is bent obliquely downward with respect to the top cover support plate along the second crease of the sheet metal main body on the front side of the top cover support plate, and a battery box support plate horizontally bent with respect to the inclined connection plate along a third crease of the sheet metal main body on a front side of the inclined connection plate. The rear support frameis integrally bent and formed by the sheet metal main body, and can simultaneously provide support and mounting for the rear top cover assembly, the rear back door and the battery box, thereby reducing the number of vehicle body support and connection parts, meeting lightweight design requirements, and improving assembly efficiency.