Nasopharyngeal cancer can be detected by nasoscopy, including 0 degree, 30 degree and 70 degree nasoscopy. Through the nasoscope into the nasal cavity and then into the posterior nostril, the entire nasopharyngeal structure can be seen. Generally, nasopharyngeal cancer is more likely to occur in the posterior parietal wall of nasopharynx, especially in the saphenous fossa, which can be clearly seen under the nasoscopic view. Clinically, nasopharyngeal carcinoma can be manifested as nodular, cauliflower, ulcerative, submucosal infiltrative and other types under nasal microscopy. For the submucosal infiltrative type, a combination of enhanced MRI of the nasopharynx is clinically required for comprehensive management.