Objective To observe whether dezocine combined with propofol can prevent intra operative dragging reaction during hysterectomy or not. Methods Sixty patients(ASAⅠ~Ⅱ)which through hysterectomy surgery were randomly arranged to 3 groups. All the patients were under spinal anesthesia, adjusted the anesthesia plane to T6. Group l: dezocine 0.1 mg/kg were intravenous injected, Group ll: dezocine 0.1 mg/kg were intravenous injected and then propofol 2~4 mg/kg/h were intravenous pumped, Group lll: propofol 1.5 mg/kg were intravenous injected and then propofol 2~4 mg/kg/h intravenous were pumped. HR、MAP and Ramesay scale were recorded at the time points of pre-anesthesia(T₀)、pre-injection(T₁)、5 min after injection(T₂)、skin incision(T₃)、dragging uterus(T₄)、after surgery(T₅),the effect of muscle relaxation and the reaction of patients were recorded in the mean time, comfort degree and satisfaction degree of patients were evaluated after surgery. Results There was no significant difference of general condition between the three groups (P>0.05). At the time point of T₂ and T₅, MAP of Group lll patients were significant lower than the base value(P<0.05). At the time point of T₂、T₃、T₄ and T₅, HR of Group lll patients were significant lower then base value(P<0.05). Dragging reaction during the surgery were significant reduced in Group ll and Group lll but not in Group l(P<0.05). Group ll and Group lll patients felt more comfortable and more satisfied than Group l patients(P<0.05). Conclusion 0.1 mg/kg dezocine combined with propofol can prevent intra operative dragging reaction and make patient feel more comfortable during hysterectomy.