All-plastic rear tail door of automobile

The utility model discloses an automobile all-plastic rear tail door, which relates to the technical field of rear tail doors and comprises a rear tail door body, rear tail lamp covers are fixedly mounted on two sides of the rear tail door body, a rear tail door framework is fixedly mounted on the rear side of the rear tail door body, and a cross beam is fixedly mounted in the middle of the rear tail door framework. A first reinforcing rib is fixedly installed at the bottom of the cross beam, and second reinforcing ribs are fixedly installed on the two sides of the bottom of the cross beam. According to the all-plastic rear tail door of the automobile, the weight of the rear tail door is reduced on the premise that the strength of the rear tail door body is guaranteed, the heat resistance of the rear tail door body can be improved through matched arrangement of the outer heat-resisting layer and the inner heat-resisting layer, the rear tail door can bear large high temperature, plastic decomposition or sponta