Abstract: In this study, the meat production performance of the F~ generation hybrid sheep of German Mutton Merino sheep and local sheep was evaluated. The result showed that the hybrid sheep have the heterosis in terms of adaptability to the local confinedness condition, growth and development and meat production performance in 2013 and 2014. The average weight of F~ generation of the hybrid sheep in 6 months old was 44.24 kg and was significantly higher than that of the control group （P〈0.01）, and lean meat percentage was higher and mutton quality was better in 2014. The carcass weight of F1 generation in 6 months old was 6.28 kg higher than that of control group, and the meat percentage and dressing percentage of the F1 generation was 5.11% and 6.92% higher than those of the control group respectively （P〈0.05）.