Abstract: In order to improve the quality of swine in Yunnan Province,four hybridized combinations（PIC402×LY,PIC402×N1,D×LY,and Y×N1） used in Yunnan Province were selected,and their growth performance,slaughter performance and meat quality were compared.Single-factor four-treatment design was used.The pigs were assigned to four groups according to their hybridized combinations,two replicates in each group and four pigs in each replicate.The same feeding and management were performed.When the daily gain was 20-60 kg,the PIC402×N1 had the highest daily gain [（782±87） g],which was 82,82 and 127 g higher than that the PIC402×LY,D×LY,and Y×N1,respectively.When the daily gain was 60-100 kg,the daily gain of PIC402×LY,D×LY,PIC402×N1 and Y×N1 decreased successively,and the differences were significant（P0.05）.When the daily gain was 20-60 kg,the D×LY had the lowest feed conservation ratio（2.41±0.32）,and the differences were significant（P0.05）.When the daily gain was 60-100 kg,the feed conservation ratio of PIC402×LY,D×LY,Y×N1,and PIC402×N1 increased successively.The dressing percentage was highest in the PIC402 × N1 [（79.57±2.59）%] and lowest in the D×LY [（76.96±2.97）%].The content of delicious amino acids and that of essential amino acids were highest in the Y×N1,（42.07±8.91）% and（41.21±9.05）%,respectively.Therefore,the introduced pig breeds have more excellent growing-finishing performance than the local breeds in Yunnan Province,but the latter have more excellent meat quality and flavor than the former.