C-pillar threshold beam connecting structure and automobile

The invention belongs to the technical field of automobile structures, and concretely relates to a C-pillar threshold beam connecting structure and an automobile. The C-pillar threshold beam connecting structure comprises a threshold beam, a rear longitudinal beam, an outer wheel cover lower connecting plate, a rear longitudinal beam front sealing plate and a C-pillar lower reinforcing plate, therear longitudinal beam is connected to the inner side of the threshold beam, the bottom of the C-pillar lower reinforcing plate is connected with the outer side of the threshold beam, the outer wheelcover lower connecting plate is connected to the front end of the C-pillar lower reinforcing plate, the bottom of the outer wheel cover lower connecting plate abuts against the top of the threshold beam, the rear longitudinal beam front sealing plate is connected with the rear longitudinal beam and is arranged on the inner side of the outer wheel cover lower connecting plate, and the bottom of therear longitudinal beam fro