The present invention relates to a genetic marker for determining meat quality traits of pigs and a use thereof, and specifically, a genetic marker for determining meat quality traits of pigs, comprising a polynucleotide consisting of 5 to 300 consecutive nucleotides comprising the nucleotides from the 1524th to the 1527th positions in the polynucleotide of SEQ ID NO: 1, or a polynucleotide complementary thereto, a composition for determining meat quality traits of pigs comprising an agent capable of detecting the genetic marker, a composition for determining Korean native pigs, a kit, a microarray, a method for determining meat quality traits of pigs, and a method for determining meat quality traits of Korean native pigs. The genetic marker of the present invention is a specific marker for determining the meat quality traits of pigs, and thus the marker can be used not only as a means for the objective evaluation of meat quality traits of pigs that cannot be determined by the naked eye but also as a means for distinguishing between foreign pigs and Korean native pigs, and is thereby capable of contributing to the establishment of distribution order of pork meat.