Objective: To compare the clinical effect of Xuebijing or ulinastain combined with the conventional treatment for chronic obstructive pulmonary disease with acute exacerbation (AECOPD) complicated with systemic inflammatory response syndrome(SIRS).Methods: Totally 82 AECOPD patients with SIRS were randomly divided into group A and group B with 41 ones in each and both groups were treated with the conventional therapy.Group A was treated with ulinastatin (dissolved in 100 ml 0.9% sodium chloride injection, intravenous infusion, once daily), group B was given 50ml Xuebijing injection (mixed with 100 ml saline, intravenous infusion, twice a day).The lung function test, blood gas analysis and inflammatory factors were carried out in both groups.Results: After treatment, the lung function indices of FEV, FEV1 and FEV1/FVC in group A and B were significantly higher than those of before treatment (P<0.05), and group B was significantly higher than group A(P<0.05).Two groups of PaO2 and pH were significantly higher than those of before treatment, and PaCO2 was significantly decreased (P<0.05).PaO2 and pH in group B were significantly higher than those in group A, and PaCO2 was significantly lower than that in group A (P<0.05).The levels of APACHE Ⅱ, TNF-α and IL-6 were significantly lower than those of before treatment (P<0.05), and above indices in group B were lower than those in group A(P<0.05).There was no significant difference in the incidence of adverse drug reactions between the two groups (P>0.05).Conclusion: The clinical effect of Xuebijing or ulinastain combined with the conventional treatment is promising for AECOPD complicated with SIRS.Xuebijing injection combined with the conventional treatment shows better effect on the improvement of lung function and blood gas, and the levels of inflammatory cytokines can be reduced more significantly, which is also safe in the clinical application.