Given the rarity of nasal and paranasal sinus rhabdomyosarcoma (SNRMS), there is a lack of literature on systemic treatment models for adult SNRMS, let alone prospective clinical studies. After referring to the literature, combining clinical practice and summarizing the previous treatment data of our center, we plan to conduct a prospective clinical trial: a study on the treatment of adult SNRMS with induction chemotherapy combined with radical chemoradiotherapy followed by adjuvant chemotherapy and surgery. The cumulative chemotherapy course is 8 (4 courses before radiotherapy and 4 courses after radiotherapy), and the total radiotherapy dose is 62-66Gy.