Cisplatin and Gemcitabine With or Without Bevacizumab in EGFR Wild-type Non-Small Cell Lung Cancer

Inclusion Criteria: * Histologic documentation of primary lung carcinoma, non-squamous histology with EGFR mutation Negative. * Stage IIIB/IV disease according to the 7th Edition of the American Joint Committee on Cancer staging system * Not received radiotherapy, chemotherapy or other biological treatment * Measureable disease * Life expectancy of \>= 12 months * Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) 0 or 1 * Absolute neutrophil count (ANC) \>= 2, 500/mm\^3 * Platelet count \>= 100,000/mm\^3 * Hemoglobin \>= 9.0 g/dL * Total bilirubin =\< 1.5 x upper limit of normal (ULN) * Serum glutamic oxaloacetic transaminase (SGOT) (aspartate aminotransferase \[AST\]) and serum glutamic pyruvic transaminase (SGPT) (alanine aminotransferase \[ALT\]) =\< 2.5 x ULN in patients without liver or bone metastases; \< 5 x ULN in patients with liver or bone metastases * Cockcroft-Gault calculated creatinine clearance of \>= 45 ml/min or creatinine =\< 1.5 x ULN * Prothrombin time (PT) =\< 1.5 x ULN * Partial thromboplastin time (PTT) =\< ULN * Urine dipstick proteinuria \< 2+ \* Note: Patients discovered to have \>= 2 + proteinuria on dipstick urinalysis at baseline should undergo a 24-hour urine collection and must demonstrate \< 1 g of protein in 24 hours * Negative pregnancy test done =\< 7 days prior to randomization, for women of childbearing potential only * Provide informed written consent * Willing to return to Sichuan cancer hospital for follow-up * Willing to provide tissue and blood samples for correlative research purposes Exclusion Criteria: * Mixed, non-small cell and small cell tumors or mixed adenosquamous carcinomas with a predominant squamous component * Prior chemotherapy or treatment for metastatic non-small cell lung cancer * Immunocompromised patients (other than that related to the use of corticosteroids) including patients known to be human immunodeficiency virus (HIV) positive, per MD discretion * Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements * Receiving any other investigational agent which would be considered as a treatment for the primary neoplasm * Other active malignancy =\< 3 years prior to randomization; EXCEPTIONS: Non melanotic skin cancer or carcinoma-in-situ of the cervix * History of myocardial infarction or other evidence of arterial thrombotic disease (angina) * History of cerebral vascular accident (CVA) or transient ischemic attack (TIA) =\< 6 months prior to randomization * Ongoing or active infection, symptomatic congestive heart failure , cardiac arrhythmia, psychiatric illness/social situations, or any other medical condition that would limit compliance with study requirements * History of bleeding diathesis or coagulopathy * Inadequately controlled hypertension (systolic blood pressure of \> 150 mmHg or diastolic pressure \> 100 mmHg on anti-hypertensive medications) * Serious non-healing wound, ulcer, bone fracture, or have undergone a major surgical procedure, open biopsy, or significant traumatic injury =\< 28 days or core biopsy =\< 7 days prior to randomization * History of abdominal fistula, gastrointestinal perforation, or intrabdominal abscess =\< 6 months prior to randomization * History of hemoptysis \>= grade 2 (defined as bright red blood of at least 2.5 mL) =\< 3 months prior to randomization * Pregnancy