Abstract: The progress of functional genomics makes it possible to improve beef quality at molecular level in order to obtain high quality beef.The beef quality traits was closely associated with economic value and it mainly include tenderness,marbling,juiciness and so on.The advancement and present status in the QTL of the main beef quality traits,the genetic makers-SNP,cDNA library and gene that is associated with beef quality traits was reviewed in this paper by using sixty eight references,as the asso...