Objective To evaluate the treating efficacy of application of improved external therapy of traditional Chinese medicine on chronic pelvic inflammatory disease infections.Methods Using case control study,we randomly classified patients with chronic pelvic inflammatory disease infections into two groups.The treatment group used Sihuangshui Honey on navel,enema with Maodongqing,and physical treatment on lumbosacral portion with pelvic instrument,while the control group took Jingangteng Capsule,Danshen injection,and application of Sihuangshui Honey on abdomen.Then we evaluated therapy results after two courses of treatment,and each course was 7 days.Treatment suspended during menstrual periods.Results The treatment group's significant efficiency was 64.79％,and total effective rate was 95.77％,while those of the control group were 38.03％ and 84.51％ respectively,Two groups showed significant difference( P＜0.05 ).The treatment group was superior to the control group as far as HEF Differential (P＜0.05) is concerned.Conclusion Improved exterrnal therapy of traditional Chinese medicine is effective and safe in treating chronic pelvic inflammatory disease infections.Extension of the treatmenf is worthwhile.