Ten cases of basicranial repair and reconstruction after resection of malignant tumors in nasal sinuses invading base of skull were reported. Dural repair was performed when the resected basicranial osseous lamella was less than 3 cm in diameter; when the lamella ranged from 4 to 7 cm, bone graft was not required either, the defect was repaired with either fascia lata and pericranium of pedunculated galea aponeurotica or frontal myocutaneous. No leakage of cerebrospinal fluid, cerebral hernia and intracranial infection happened postoperatively.