In this study,the Anhui local breeds Wei pig,Anqing Liubai pig and foreign lean-type pig Landraces were selected. The inosine monophosphate( IMP) content in long issimus dorsi muscle of three breeds of pigs were detected by HPLC. the influence of meat quality traits of QTLs in the livestock or poultry were identified. ADSL and GARS-AIRS-GART were associated with pork quality and identified in the pig genome. The ADSL and GARS-AIRSGART gene expression levels in liver,heart and long issimus dorsi muscle which can influence the IMP content were examined by RealTime-PCR. A correlation analysis was made on the expression levels of two genes in different breeds and IMP content. The result indicated that the IMP content in long issimus dorsi muscle of Landraces is higher than that of Wei pig and Liubai pig. The ADSL gene expression level in long issimus dorsi muscle is the highest,followed by the heart,and the liver is the lowest. However,GARS-AIRS-GART gene expression level in long issimus dorsi muscle is the highest,followed by the liver,the heart is the lowest. There is a negative correlation between IMP content and ADSL gene expression in liver of Landraces and GARS-AIRS-GART gene expression level in liver of Wei pig and heart of Liubai pig.