Abstract:【Objective】To compare the efficacy of human papillomavirus(HPV)biologic protein excipient with recombinant human interferon alpha 2b in the treatment of persistent HPV infection after LEEP for cervical squamous intraepithelial neoplasia.【Methods】From January 2016 to December 2017,100 patients with persistent HPV infection after operation of cervical squamous epithelial neoplasia were selected and randomly divided into 2 groups,observation group(postoperative anti-HPV biological protein dressing,n=50)and control group(postoperative treatment with recombinant human interferon alpha 2b,n=50),and the clinical effects of the two groups were compared.【Results】During the one-year follow-up,the HPV positive rate at 3 months(70.00%)in the observation group was not statistically different from that in the control group(86.00%)(P>0.05).The HPV positive rates in the obcervation group at 6 months(48.00%),9 months(36.00%)and 12 months(8.00%)were significantly lower than those in the control group(70.00%,58.00%and 26.00%).The HPV-DNA load of patients in the observation group decreased significantly at 6,9 and 12 months after surgery,and the difference was statistically significant compared with the control group(P<0.05).【Conclusion】Anti-HPV biological protein dressing can be more effective in the treatment of persistent HPV infection after LEEP in patients with cervical squamous intraepithelial neoplasia,with significant clinical effect and certain promotional value.