CONCLUSIONS Through researching on the abdominal postoperative analgesic effect of continuous infusion method of 0.2% levobupivacaine into the incision, intravenous morphine PCA and 0.25% levobupivacaine CEA on 120 patients from 10/2015 to 04/2018 at Viet Duc Hospital we concluded: Abdominal postoperative analgesic effect Analgesic effect for the patients by continuous infusion of levobupivacaine into the incision was good (the resting and activating VAS <4).