The utility model provides an automobile body suspension mounting structure and car, include: vehicle body floor, floor crossbeam, a support section of thick bamboo, enhancement box and floor cross beam connecting plate, wherein, vehicle body floor's bottom with the top welding of floor crossbeam, the bottom of floor crossbeam with support the top welding of a section of thick bamboo, the bottom of supporting a section of thick bamboo with wherein, the bottom of strengthening the box with floor cross beam connecting plate's top welding. Like this, can improve structural strength and stabilitythrough welding into a body structure, set up strengthen the box also can increase strength, set up and support a section of thick bamboo and can put forward high support rigidity to mesh front vehicle body suspension mounting structure's the lower problem of structural strength has been solved.