Objective:To evaluate the effects of continuous venovenous hemofiltration(CVVH) combined with hemoperfusion(HP) in the treatment of acute renal failure(ARF) caused by wasp sting. Methods:Totally 72 patients with ARF caused by wasp sting were divided into haemodialysis(HD) group(n=30) and CVVH/HP group(n=42) based on the different treatments. Blood urea nitrogen(BUN),serum creatinine(Scr),K+,HCO3-,pH,β2-microglobulin(β2-MG) and myoglobin were measured at 24 h after the treatments. The total effective rate,average time of oliguria stage and average time in hospital were recorded and compared between two groups. Results:There were significant decreases in BUN,Scr and K ,and significant increases in HCO3- and pH in both two groups at 24 h after treatment(P<0.05). There was no difference in β2-MG and myoglobin in HD group before and after the treatment(P >0.05);however,significant decreases in β2-MG and myoglobin in CVVH/HP group were observed(P<0.05). There was no significant differ-ence in K ,HCO3- and pH between two groups after the treatment(P >0.05);but BUN,Scr,β2-MG and myoglobin were significantly lower in CVVH /HP group than in HD group(P<0.05). The total effective rate in CVVH/HP group was significantly higher than that in HD group,and the average time of oliguria stage and the average time in hospital in CVVH/HP group were significantly shorter than those in HD group(P<0.05). Conclusion:CVVH combined with HD can markedly correct turbulence of electrolyte and acid-alkali,effectively clear toxic substance in vivo,and significantly improve renal function and prognosis. It is of better clinical effect and may be a good therapeutic measure for ARF caused by wasp sting.