From April 1, 2018, to January 1, 2021, a total of 31 patients with metastatic EGFR-mutant lung cancers were enrolled in this study. Osimertinib was orally administered daily (once) at a dose of 80 mg...Bevacizumab (7.5 mg/kg) was administered by drip infusion on the first day of each cycle....Of the 26 patients, 6 (23.08%) had a partial response, 20 (72.92%) had stable disease, and none had progressive disease....EGFR21 had a significantly higher risk of progression than EGFR19 (HR=6.998, 95% CI: 2.101-23.311, P=0.002).