OBJECTIVE： To observe analgesia， sedation effects and safety of flurbiprofen axetil combined with hydromorphone for postoperative patient-controlled intravenous analgesia （PCIA） after orthopedics surgery. METHODS： Totally 90 patients with combined spinal epidural anesthesia underwent lower limb surgery were selected from anesthesology department in the Affiliated Hospital of Chengde Medical College during May 2016-Jan. 2018. They were divided into SF group， H group and KH group according random number table， with 30 cases in each group. The postoperative PCIA pump drug liquid formula of SF group included Sufentanil citrate injection 2-3   μg/kg+Tropisetron hydrochloride for injection 10 mg+0.9％ Sodium chloride injection diluted to 100 mL； that of H group included Hydromorphone hydrochloride injection 0.12 mg/kg+Tropisetron hydrochloride for injection 10 mg+0.9％ Sodium chloride injection diluted to 100 mL； that of KH group included Hydromorphone hydrochloride injection 0.12 mg/kg+Flurbiprofen axetil injection 50 mg+Tropisetron hydrochloride for injection 10 mg+0.9％ Sodium chloride injection diluted to 100 mL. The operation time， intraoperative medication （epidural application frequency of additional ropivacaine， frequency of ephedrine and atropine）， effective pressing times of analgesic pump and the analgesic effect of PCIA were observed in 3 groups. VAS score and Ramsay sedation score were observed 2， 6， 12， 24， 48 h after surgery. The hospital anxiety and depression scale （HAD） score， profile of mood states （POMS） score and the occurrence of ADR were observed before and after surgery. RESULTS： There was no statistical significance in operation time， epidural application frequency of additional ropivacaine or frequency of ephedrine and atropine among 3 groups （P＞0.05）. The effective pressing times of analgesic pump in KH group were significantly lower than SF group and H group. The proportion of patients with excellent and good anesthesia effect in KH group was significantly higher than SF group and H group （P＜0.05）； there was no statistical significance between SF group and H group （P＞0.05）. VAS score of 3 groups 48 h after surgery were significantly lower than 6， 12， 24 h after surgery； that of KH group was significantly lower than SF group and H group （P＜0.05）； there was no statistical significance between SF group and H group （P＞0.05）. There was no statistical significance in Ramsay score among 3 groups at different time points （P＞0.05）. Before surgery， there was no statistical significance in HAD score or POMS score among 3 groups （P＞0.05）. After surgery， HAD score and POMS score of KH group and H group were significantly lower than before surgery and SF group （P＜0.05）； there was no statistical significance in KH group and H group， before and after surgery in SF group （P＞0.05）. No vomiting， respiratory depression， pruritus and digestive tract bleeding were observed in 3 groups. The incidence of dizziness and nausea in H group and KH group were significantly lower than SF group （P＜0.05）； there was no statistical significance between KH group and H group （P＞0.05）. CONCLUSIONS： The flurbiprofen axetil combined with hydromorphone show good analgesic and sedative effect for PCIA after orthopedics operation， and can significantly improve emotion and mood of patients with good safety.