Abstract: Objective To explore influence of oriented frapping thread on the treatment of anal function after surgery in patients with high anal fistula.Methods 30 patients with high anal fistula were randomly divided into the observation group (oriented frapping thread)and the control group (traditional incision-thread-drawing procedure).Therapeutic effect,recovery time,postoper-ative recurrence rate and anal sphincter function were observed between the two groups during the 3 months follow-up period.Results There were no significant differences of therapeutic effect,re-covery time and recurrence rate between the two groups (P >0.05).The incidence rate of anal keyhole deformity,anal incontinence score (Wexner score)and anal finger wrapped score in the ob-servation group were significantly lower than those of the control group (P <0.05).Conclusion Oriented frapping thread technique can effectively reduce the influence of thread-drawing therapy on anal morphology and function after the surgery in patients with high anal fistula.