The phase I study is conducted to explore the safety, tolerability, dose-limiting toxicities(DLT), Maximum Tolerable Dose(MTD), and preliminary anti-tumor activity of Apatinib combined with platinum-based doublet chemotherapy(PB-DC) in first-line advanced EGFR wild type non-squamous non-small cell lung cancer. This will use a dose reduction trial design. A cohort of 3~6 subjects will be enrolled at each dose level, If 0 of 3 or ≤ 1 of 6 subjects experience a DLT, the phase I trial will stop and the current dose will be considered the MTD. If 1 of 6 or more subjects experiences a DLT, dose reduce to the next dose will occur.