目的解决单纯行界内窥镜手术不能完全清除上颌窦筛窦病变组织的局限性。方法对29例上颌窦和筛窦均有广泛病变且反复发作的，或疑有恶性占位性病变患者采用传统的犬齿窝进路和界内窥镜手术相结合的方法。结果术后情况良好，无并发症。结论联合进路治疗上颌窦筛窦病变可以最大限度地保留正常解剖结构，从而提高该类疾病的治愈率，减少复发。 Objective To solve the limitations of simple endoscopic surgery can not completely remove the lesions of maxillary sinus ethmoid sinus tissue. Methods A total of 29 cases of maxillary sinus and ethmoid sinus were extensive lesions and recurrent, or suspected malignant space-occupying lesions using traditional canine approach and endoscopic surgery combined method. Results Postoperative condition is good, no complications. Conclusion Combined approach for the treatment of maxillary sinus ethmoid sinus lesions can maximize the retention of normal anatomy, thereby increasing the cure rate of such diseases and reduce recurrence.