579 Background: It is not clear whether Bevacizumab plus chemotherapy could improve the prognosis of mCRC patients with other RAS mutations beyond KRAS exon 2. Methods: The MEDLINE, EMBASE, Cochrane databases, and Clinical Trials databases were reviewed to September 2015. The data of patients with KRAS exon 2 mutations was only available in FIRE3 study. So we could not perform the meta-analysis by KRAS exon 2 mutations. The data of patients with other RAS mutations beyond KRAS exon 2 were available in PEAK and FIRE3 studies. Hazard ratio (HR) was used to analyze the progressive-free survival (PFS) and overall survival (OS). Relative risk (RR) was used to analyze overall response rate (ORR). Results: Patients with other RAS mutations beyond KRAS exon 2 benefited from the addition of Bevacizumab. Bevacizumab + chemotherapy significantly improved the PFS compared with anti-EGFR moAb + chemotherapy (HR: 1.82, CI: 1.20–2.77, P =.005). The addition of Bevacizumab tended to improve ORR, though there is no significant difference (RR: 0.83, CI: 0.58–1.18, P =.288). But the OS tended to be shorter in Bevacizumab + chemotherapy arm than anti-EGFR moAb + chemotherapy arm without significant difference (HR: 0.72, CI: 0.25–2.05, P =.534). Conclusions: Patients with other RAS mutations beyond KRAS exon 2 could choose Bevacizumab plus chemotherapy as first-line therapy. But there is still no adequate evidence to reject or support the predictive value of RAS status in the effect of the addition of Bevacizumab. Moreover, which is the better primary endpoint, PFS or OS? Which is the better consequence of strategy, anti-EGFR moAb followed by Bevacizumab or Bevacizumab followed by anti-EGFR moAb? RCTs with large sample size comparing the efficacy of anti-VEGF moAb + chemotherapy and chemotherapy alone by RAS status as the first-line therapy in mCRC patients are required in the future.