Abstract: Objective To explore effect and nursing of Dezocine and Sufentanil on self-controlled vein analgesia after laparotomy.Methods 60 patients undergoing abdominal surgery were randomly divided into Dezocine group (group D),Sufentanil group (group S),and Dezocine and Sufentani group (group DS).Analgesic,sedative effect of three drugs after 3 postoperative hours,6 h,12 h,24 h and 48 h were compared.Adverse reactions such as nausea,vomiting, dizziness,respiratory depression were recorded.Satisfaction of three groups of patients on the post-operative analgesia effect was evaluated.Results After 6 postoperative hours,12 h,24 h and 48 h,the difference of VAS score of group DS was not statistically significant compared with the group S (P >0.05).And the score of group DS and group S were lower than that in the group D (P <0.05).Analgesia satisfaction of group DS was higher than that of group D and group S,and the difference was statistically significant (P <0.05).The incidence of adverse reactions of group DS was lower than that of group D and S ,and the difference was statistically significant (P <0.05).Conclusion The analgesia and sedative effect of the Dezocine and Sufentanil after abdomi-nal surgery is better than drug usage alone,and adverse reactions decreases.Preoperative and post-operative education about analgesic effect,timely dealing with adverse reactions can increase pa-tients’satisfaction and improve the quality of life of the patients.