This study is a prospective, multicenter, single arm clinical study. Thirty subjects who will have been diagnosed with locally advanced or metastatic non-small cell lung cancer with EGFR 21L858R mutation detected in lung cancer tissue or peripheral blood will be recruited and treated with anlotinib and aumolertinib. The efficacy will be evaluated according to the Solid Tumor Efficacy Evaluation Standard (RECIST 1.1), and evaluated every 6 to 8 weeks. The survival status and adverse reactions of the subjects will be recorded. The study will be terminated when the subjects experience disease progression or intolerable drug toxicity, or the subjects withdraw their informed consent. The main purpose of the study is to observe the efficacy and safety of the combined treatment regimen in such subjects. The primary endpoint of the study is median progression free survival (mPFS); The secondary study endpoints are objective response rate (ORR), disease control rate (DCR), median overall survival time (mOS), and safety.