Abstract： Objective To observe the healing effect of deep partial thickness burns by the injecting of breviscapine and discuss the possible mechanisms. Methods A rat model of deep partial thickness burns was designed,and was injected with breviscapine.The control group was injected with normal saline.The healing time of burn wound of the two groups was recorded,respectively.Seven days later,the tissues of bum wound of each group were extracted and the contents of hydroxyproline,collagenase-1,nitrogen monoxidum,erythrocuprein,and malonaldehyde that were contained in each extracts were measured.The results of each group were statistically analyzed.Results The healing time of burn wound of the experimental group was [ ( 12 ± 1.428 ) days ],which was significantly shorter than the control group [ ( 14.75 ±1.291 )days] ( P ＜0.05).The contents of hydroxyproline[ (3.17 ± 1.136) mg/g],collagenase-1 [ ( 1.28± 0.651 ) mg/g ],nitrogen monoxidum [ ( 2.62 ± 0.30 ) μmol/gprot ],and erythrocuprein [ ( 221.25 ±25.94) U/mgprot ] in the experimental group were all higher than the control group [ (7.32 ± 2.173 )mg/g,(5.38 ±0.363) mg/g,(7.28 ± 0.40) μmol/gprot,(296.36 ± 29.29) U/mgprot ] ( P ＜ 0.05 or P ＜0.01 ).However,the content of malonaldehyde [ (6.36 ± 0.93 ) nmol/mgprot ] was lower than the control group [ ( 1.25 ± 0.59) nmoL/mgprot ] ( P ＜ 0.05 ).Conclusions The breviscapine injection can decurtate the healing time of deep partial thickness bums and it may be related to the extension of blood vessel,improvement of microcirculation,elimination of oxygen free radical,and degradation of lipid peroxidation.