A Efficacy and Safety Study of Anlotinib Hydrochloride Capsule Combined With Chemotherapy Versus Placebo Combined With Chemotherapy as First-line Treatment in Subjects With Advanced Non-squamous Cell Non-small Cell Lung Cancer

Inclusion Criteria: * 1\. Local advanced (stage IIIB / ⅢC), metastatic or recurrent (stage IV) non-squamous cell non-small cell lung cancer, has at least one measurable lesion. 2\. EGFR, ALK, and ROS1 test results are negative. 3. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1, life expectancy≥ 12 weeks. 4\. Has not received systemic anti-tumor treatment for advanced disease. 5.Adequate organ system function. 6. Male or female subjects should agree to use an adequate method of contraception starting with the first dose of study therapy through 6 months after the last dose of study (such as intrauterine devices , contraceptives or condoms) ; No pregnant or breastfeeding women, and a negative pregnancy test are received within 7 days before the randomization. 7\. Understood and signed an informed consent form. Exclusion Criteria: * 1.Other histopathological types of non-small cell lung cancer. 2.Has received VEGF pathway targeted therapy including anlotinib and bevacizumab. 3\. Has multiple factors affecting oral medication. 4. Has symptomatic brain metastases. 5. Has uncontrollable pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures. 6\. Has adverse events caused by previous therapy except alopecia that did not recover to ≤grade 1. 7\. Has any severe and / or uncontrolled diseases. 8. Has any bleeding symptoms or treated with anticoagulants or vitamin K antagonists. 9.Has received surgery, or unhealed wounds within 4 weeks before the first administration. 10\. Has hemoptysis within 28 days before randomization. 11. Imaging (CT or MRI) shows that tumor invades large blood vessels or the boundary with blood vessels is unclear. 12\. Has arterial or venous thromboembolic events occurred within 6 months, such as cerebrovascular accident including transient ischemic attack, deep vein thrombosis and pulmonary embolism. 13\. Has psychotropic substances abuse or a mental disorder. 14. Have a history of immunodeficiency. 15. Has received allogeneic organ transplantation, hematopoietic stem cell transplantation or bone marrow transplantation. 16\. Has other malignancy. 17.Has participated in other anticancer drug clinical trials within 4 weeks. 18.According to the judgement of the researchers, there are other factors that may lead to the termination of the study.