Inclusion Criteria:  Resectable stage IIIA NSCLC, EGFR mutation-negative and ALK rearrangement negative (8th UICC TNM staging); No prior anti-tumor therapy for NSCLC; Age from 18 to 75 years old;  Adequate organ function:  Hemoglobin ≥9.0g/L; White blood cell count 4.0~10×109/L; The absolute value of neutrophils (ANC) ≥ 1.5×109/L; Platelet count ≥100×109/L; Total bilirubin ≤ 1.5 times the upper limit of normal; ALT and AST≤2.5 times the upper limit of normal; The international normalized ratio of prothrombin time is ≤1.5 times the upper limit of normal value, and the partial thromboplastin time is within the range of normal value; Creatinine ≤ 1.5 times the upper limit of normal;  No chemotherapy, radiotherapy or hormone therapy for malignant tumors, no history of other malignant tumors, excluding patients who have received hormone therapy for prostate cancer and have had DFS for more than 5 years; ECOG 0～1;  Exclusion Criteria:  Double primary or multiple primary NSCLC; EGFR mutation or ALK mutation was positive patients with psychosis; Pre-existing or coexisting bleeding disorders; Other uncontrollable and inoperable patients; Patients whose previous operations have prevented this operation from being performed; Female patients who are pregnant or breastfeeding; For patients who are allergic to the drugs in the program.