In this study, we would investigate the efficacy of the combined therapy bevacizumab and double-dose icotinib for advanced NSCLC patients with EGFR L858R mutation….For 30 patients with complete efficacy evaluation data, 20 patients achieved partial responses (PR), 9 patients had stable disease (SD), and 1 patient developed progress disease (PD). The objective response rate (ORR) was 66.7%, the disease control rate (DCR) was 96.7%, and the median PFS was 14.8 months.....The combination of bevacizumab with double-dose icotinib is an effective and relatively safe treatment for advanced NSCLC patients with EGFR L858R mutation.