The invention discloses an upper vehicle body structure for improving the
compressive strength of the top of a cross-country SUV. The upper vehicle body structure comprises an upper vehicle
body frame defined by a top cover beam, a column A, a column B, a column C and a doorsill beam. The top cover beam comprises a top cover edge beam, a top cover front cross beam and a top cover rear cross beam, and a
skylight reinforcing ring is arranged on the inner side of the top cover beam; the A column comprises an A column reinforcing plate
assembly and an A column inner plate
assembly; the column B comprises a column B reinforcing plate
assembly and a column B inner plate assembly; the C column comprises a C column reinforcing plate assembly and a C column inner plate assembly; the doorsill beam comprises a doorsill reinforcing plate assembly and a doorsill inner plate assembly. The upper vehicle
body frame structure has the advantages that a multi-layer, three-dimensional and continuous-path high-strength upper vehicle
body frame structure is constructed, a plurality of continuous closed-loop force transmission paths are formed, the
structural integrity and deformation resistance are improved, the
bearing capacity of the cross-country SUV vehicle when the cross-country SUV vehicle rolls over or the top of the cross-country SUV vehicle is pressed is remarkably improved, the
living space in a cabin of a driver and passengers is ensured, and the service life of the cross-country SUV vehicle is prolonged. The strict requirements of top
compressive strength regulations are effectively met.