Objective: To investigate the effects of Shen-Mai injection(SM) on perfusion and oxygenation of intestinaltract during repeffusion in shocked rabbits. Methods:Twenty-one rabbits were divided into control group (Ⅰ,n = 6), shock-repeffusion group ( Ⅱ, n = 9) and SM group ( Ⅲ, n = 6). Intestinal intramucosal pH (pHi) of the sigrnoid colon and portalvein blood gas was observed before shock, at 1 hour after shock, 1 hour and 2 hours of reperfusion. Results: pHi and portal vein pH in group Ⅱ were significantly lower than those in group Ⅰ (P < 0.01), but portal vein increased obviously during reperfusion. There was a good linear positive correlation between pHi and portal vein pH. Portal vein in group Ⅱ was greater than that in group Ⅰ and had anegative correlation with pHi. pHi and portal vein pH of group Ⅲ increased signifi- cantly compared with those of goup Ⅱ ( P < 0.05), while of group Ⅲ returned to the level of group Ⅰ . MAP and CO of group m were higher than those of group Ⅱ after 1 hour or 2 hours reperfusion (P<0.05).CO of group m remained at a high level during reperfusion. But SVR of group Ⅲ was lower than that of group Ⅱ during reperfusion. Conclusion: SM im-proves perfusion and oxygenation of intestinal tract during reperfusion.