Objective To study the influence of carbon dioxide (CO2)gas temperature on recovery of patients after laparoscopic gastrointestinal operation.Methods 100 cases with gastrointestinal operation patients were selected and randomly divided into the experimental group and the control group with 50 patients in each.In the experimental group,pneumoperitoneum was established with CO2 gas heated to 37 ℃,and the control group used routine method to establish pneumoperitoneum.The items such as postoperative tracheal extubation time,anal exhaust time and extubation time were observed in two groups of patients.Results The endotracheal tube extubation time,anal exhaust time and extubation time in the experimental group were earlier than those in the control group.Conclusions Using CO2 gas heated to 37 ℃ to establish pneumoperitoneum during laparoscopic gastrointestinal operation can effectively promote the rehabilitation of patients after operation.