Objective:To study the influence of endoscopic sinus surgery(ESS)on nasal airway resistance(NAR) of intranasal contact point headaches.Method:The NAR and nasalairflow sensation were measured with anterior rhinomanometry in 20 patients(40sides) before and after the ESS.Result:A telephone follow-up six months after operation,16(85%)cases were cured,3(15%)were improved and 1(5%)had no response and the effective rate was 95%. NAR decreased significantly after the operation. The change ratesin NAR before and after the decongestion were there was a significant difference(P<0.05).Conclusion:The improvement of nasal functions by ESS is due to thealteration of the anatomic structure of the nasal cavity and the amelioration of mucosal edema. The rhinomanometry can be used as a useful clinical tool in determining nasal patency.