Objective. This study is aimed at investigating the influences of oral administration of probiotics on posthepatectomy recovery in patients in Child-Pugh grade. Methods. 100 patients (50 cases in Child-Pugh A grade and 50 cases in Child-Pugh B grade) underwent hepatectomy in our hospital from January 2018 to January 2020 were involved in this study. Subsequently, Child-Pugh A grade and Child-Pugh B grade patients were set as probiotics group (taking Clostridium butyricum, n = 25 ) and control group (no probiotics, n = 25 ). The general information, infectious indexes, and liver function indexes on days 1, 3, and 5 after operation were collected. Results. In Child-Pugh B grade subgroup patients, the procalcitonin, alanine aminotransferase, and prothrombin time of the probiotics group were statistically significantly lower than that of the control group on days 3 ( P < 0.05 ) and 5 ( P < 0.05 ) after surgery. In Child-Pugh A grade subgroup patients, there were no significant differences between probiotics group and control group after operation. Conclusion. Child-Pugh A grade subgroup patients with hepatectomy could not benefit from oral probiotics. However, Child-Pugh B grade subgroup patients taking probiotics after hepatectomy could reduce postoperative infection and accelerate recovery of liver function.