To observe efficacy of the formula of heat-clearing and blood activation for treatment of sequel of pelvic inflammation, and recurrence rate after discontinuation of the formula for 3months.Methods:One hundred and twenty patients were randomized and treated with the investigational formula (n=60) and Fule Granule (n=60) respectively for 3 consecutive months. Syndrome and vital signs were observed.Results:Formula of heat-clearing and blood activation has definite clinical efficacy for sequel of pelvic inflammation, whose recurrence rate was significantly better than that of the control group.