Lung cancer was one of the most deadly tumors in the world. The standard of care for patients is platinum-based doublet chemotherapy concurrent with radiotherapy. As for patients with a mutant epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase(ALK), EGFR or ALK tyrosine kinase inhibitors (TKIs) are the standard first-line therapy. Now, the Food and Drug Administration approved Ipilimumab, Nivolumab, and Pembrolizumab as first-line or second-line therapy for NSCLC. However, there was no reports about therapeutic effect for NSCLC patients through detecting herself immune state, immune repertoire could explore patients' immune clonality and diversity using NGS technology.The investigators look forward to illuminate the mechanism of patients antitumor action.