Abstract: The present study was conducted to investigate the difference of swine movement time between the fermentation bed feeding model （FB） and conventional cement ground single bar feeding mode （CB） ,and to investigatethe effect of swine movement time on the swine production performance, muscle fiber morphology and MSTN protein expression.The results showed that compared with the swine of CB, the swine movement time ratio of FB was increased by 82.60% （P〈0.05）, the average weight gain and average daily weight gain of FB were increased by 10.50% and 11.72% （P〈0.05）, respectively, and the diameter of swine gluteal muscle fiber bundle of FB was increased by 4.90% （P〉O.05）.The immunohistochemistry experiment results showed that there was a higher positive proportion of endogenous MSTN protein ingluteal muscle protein of CB swine and the expression of endogenous MSTN protein in gluteal muscle protein of FB swine was significantly reduced （P〈0.05）.