The invention relates to a passenger car front overhang front section beam assembly which comprises a front overhang front section beam, an upper thrust base assembly installed in the middle section of the front overhang front section beam, and a lower thrust base assembly installed at the bottom of the front overhang front section beam. The front overhang front section beam comprises a first upper beam, a first lower beam, a first left stand column, a first right stand column, a first left inclined support, a first right inclined support, a first reinforcing inclined support, a second reinforcing inclined support, a first left connecting stand column and a first right connecting stand column, wherein the first left stand column and the first right stand column are arranged between the first upper beam and the first lower beam, the first left inclined support and the first right inclined support are symmetrically arranged between the first upper beam and the first lower beam, the first reinforcing inclined support and the second reinforcing inclined support are arranged between the first left stand column and the first right stand column in a crossed mode, the first left connecting stand column is arranged between the first left inclined support and the first lower beam, and the first right connecting stand column is arranged between the first right inclined support and the first lower beam. The passenger car front overhang front section beam assembly has the advantages of being high in universality strength, low in labor intensity, short in production cycle, high in space utilization rate and the like and meets the requirement of a passenger car for light weight.