Objective To explore the effect of the diet recovery time on postural hypotension after gynecological laparoscopic operation. Methods A total of 300 patients undergoing gynecological laparoscopy were randomly divided into observation group and control group according to the order of admission,150 cases in each group. Patients in observation group took liquid food since recovery from anesthetic, their appetite and dietary levels restored to preoperative level within 24 h after surgery from liquid diet to regular diet. Patients in control group were given routine nursing care of diet after belly operation. Results The diet recovery time and the anal exhaust time of patients in observation group were (21.2±3.5) h and (15.5±4.7) h, the control group were (46.8±5.4) h and (23.4±5.4) h, there was significant difference between two groups (t=7.543,5.126, P<0.05).The incidence rate of orthostatic hypotension in observation group was 9.3% (14/150), the control group was 33.3% (50/150), there wassignificant difference between two groups (χ2=8.907, P<0.05). Conclusions Patients undergoing gynecological laparoscopy took food as soon as possible, their appetite and dietary levels restored to preoperative level within 24 h after operation. It didn′ t increase abdominal distension, but helped the intestinal function recovery and helped to reduce the incidence of postoperative orthostatic hypotension.