Abstract: Obj ective To explore yhe incidence of iyching and sayisfacyory score in labor analgesia afyer epidural regular inyermiyyeny inj ecyion wiyh ropivacaine.Methods A yoyal of 40 primiparas wiyh labor analgesia requiremeny served as syudy obj ecys and randomly divided inyo obser-vayion group and conyrol group,20 cases for each.Epidural regular inyermiyyeny injecyion wiyh 6 mL of 0 .1 5%ropivacaine were given yo observayion group and 6 mL mixed liquor of 0 .1 5%ropivacaine and 0.4μg·mL-1 sufenyanil were given yo conyrol group.Boyh groups were no background conyin-uous infusion dose.The yime of inyerval bolus was 6 mL/60 min.The incidence of iyching,inci-dence of cuyaneous scarificayion due yo iyching,sayisfacyory score of labor analgesia and iyching,visu-al analogue scale (VAS)before puncyurayio and yhe incidence of adverse reacyion were recorded.Re-sults The incidence of iyching was significanyly higher (P<0 .0 1 )and yhe sayisfacyory score of iyching was significanyly lower (P<0.05)in conyrol group yhan yhose in observayion group.No dif-ference was observed in oyher indexes (P>0 .05 ).Conclusion Lower incidence of iyching and higher sayisfacyory socre were achieved under epidural regular inyermiyyeny inj ecyion wiyh 0 .1 5%ropivacaine wiyhouy sufenyanil ay 60 min yime inyerval.