A Study of Neoadjuvant Chemotherapy Plus Anlotinib in Stage III(N2) Non-small-cell Lung Cancer

Inclusion Criteria: 1. Age :18 Years to 75 Years (Adult, Older Adult) 2. Pathological diagnosis with Stage III-N2 NSCLC which is clinically resectable and the N2 is diagnosed by either mediastinoscopy,EBUS,PET/CT; 3. EGFR、ALK、ROS1 mutation-negative；Patients with squamous cell carcinoma may not have genetic testing;PD-L1\<5%; 4. According to the RECIST 1.1 standard, there is at least one measurable target lesion; 5. ECOG physical score 0-1 points; expected survival time ≥ 3 months; 6. The main organ function meets the following criteria:1)blood routine: absolute value of neutrophils ≥ 1.5 × 109 / L, platelets ≥ 75 × 109 / L, hemoglobin ≥ 80 g / L;2)Blood biochemistry: total bilirubin ≤ 1.5 times the upper limit of normal value, aspartate aminotransferase and alanine aminotransferase ≤ 2.5 times the upper limit of normal value (if liver metastasis, ≤ upper limit of normal value 5 times), serum creatinine ≤ 1.5 times the upper limit of normal; 7. Subjects voluntarily joined the study and signed informed consent, with good adherence and follow-up. Exclusion Criteria: 1. Stage I, II , IV orNSCLC; 2. Small cell lung cancer (including lung cancer mixed with small cell lung cancer and non-small cell lung cancer);central lung squamous carcinoma along with cavum; 3. Patients with contraindication of chemotherapy 4. Subjects who have previously used Anlotinib; 5. Systematic anti-tumor treatments have been performed for the past 2 weeks, including chemotherapy, radiotherapy (except for metastatic lesions other than thoracic radiation), targeted therapy, immunotherapy, and biotherapy; 6. Imaging (CT or MRI) shows that the distance between tumor lesion and the large blood vessel is ≤ 5 mm, or there is a central tumor that invades the local large blood vessel; or there is a significant pulmonary cavity or necrotizing tumor; 7. A history of active bleeding within the first 6 months of screening, or receiving thrombolysis or anticoagulant therapy, or the investigator believes that there is a clear tendency to gastrointestinal bleeding (such as esophageal varices with bleeding risk, local activity) Ulcer lesions, etc.) or active hemoptysis; 8. A thrombotic event occurs within 6 months (including arteriovenous thrombosis, pulmonary embolism, cerebrovascular accident, including transient ischemic attack, etc.); 9. Cardiac diseases with obvious clinical symptoms, such as: congestive heart failure, coronary heart disease with obvious symptoms, arrhythmia with difficult drug control (including clinically significant QTc interval prolongation history, or screening period QTc interval women \>470ms, Male \> 450ms), had myocardial infarction within 6 months, or cardiac insufficiency; 10. Hypertension, which is uncontrolled by the drug, is defined as: systolic blood pressure ≥ 160 mmHg, or diastolic blood pressure ≥ 100 mmHg; 11. Clinically obvious gastrointestinal abnormalities, which may affect the intake, transport or absorption of drugs (such as inability to swallow, chronic diarrhea, intestinal obstruction, etc.), or patients with total gastrectomy; 12. Surgery (\<28 days) before the study was selected or the surgical incision did not completely heal, or there were other unhealed wounds; 13. Active or uncontrolled serious infections; 14. Pregnant or lactating women; those who have fertility are unwilling or unable to take effective contraceptive measures; 15. Increasing the risk associated with participating in a study or study drug, and at the discretion of the investigator, may lead to other conditions in which the patient is not eligible for inclusion in the study.