This is a one-arm prospective study to evaluate the first-line treatment of amitinib in combination with bevacizumab in patients with advanced NSCLC with EGFR mutations Effectiveness and safety. Subjects received amitinib and bevacizumab during the treatment cycle and were evaluated for efficacy every 6-8 weeks. Subject receives medication until disease progression, intolerable toxicity, or withdrawal of informed consent. The primary endpoint was progression-free survival as measured by the solid tumor Response Assessment Criteria (RECIST v1.1). Primary endpoints included objective response rate (ORR), progression-free period (PFS), and secondary endpoints included objective response rate (iORR), progression-free period (iPFS), overall survival (OS), quality of life (QoL), and safety.