This study aims to investigate the curative effect of Kangfuyan capsule in the treatment of damp-heat and blood stasis type of pelvic inflammatory disease (PID), and its influence on serum inflammatory factors IL-6, CRP and TNF-α. A total of 83 patients with PID were randomly divided into two groups: Western medicine group (control group, n=41) received oral antibiotics (azithromycin + metronidazole) alone and the traditional Chinese medicine combined with Western medicine group (experimental group, n=42) received Kangfuyan capsule based on Western medicine therapy. Clinical efficacy between these two groups and the influence of drugs in serum inflammatory factors (IL-6, CRP and TNF-α) were compared. The total effective rate was 78.05% in the control group and 97.62% in the experimental group and difference between these two groups was statistically significant (P<0.01). The symptoms and signs in the two groups significantly improved after treatment (P<0.05) and improvement rate was significantly better in the experimental group than in the control group (P<0.05). After treatment, serum inflammatory factor levels in the two groups were significantly lower than levels before treatment (P<0.05) and improvement rate was significantly better in the experimental group than in the control group (P<0.05). Kangfuyan capsule combined with antibiotics can effectively relieve the symptoms and signs of patients, improve the efficiency of treatment, provide high safety, and does not increase adverse reactions. The possible mechanism may be that this therapy suppresses chronic PID by reducing serum inflammatory factor (IL-6, CRP and TNF-α) levels.