Inclusion Criteria:  - 1.Histologically- or cytologically- documented NSCLC who present stage I (T≥4cm), IIA, IIB, IIIA, or IIIB disease, of either squamous or non-squamous histology.  2.Deemed surgically resectable by a thoracic surgeon 3.Age ≥ 18 years 4.Radiologically measurable disease, as defined by response evaluation criteria in solid tumours (RECIST) v1.1 5. Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1 6.Notified of the investigational nature of this study and signed a written informed consent in accordance with institutional and national guidelines.  Exclusion Criteria:  1. Carrying activating mutations in the TK domain of EGFR or any variety of alterations in the ALK gene or other mutations predicting hyperprogression of immunotherapy.  2. Active, known or suspected autoimmune disease. 3.Other active malignancy requiring concurrent intervention or with previous malignancies (except non-melanoma skin cancers, and the following in situ cancers: bladder, gastric, colon, endometrial, cervical/dysplasia, melanoma, or breast).  4.Prior treatment with anti-PD-1, anti-CTLA-4 (cytotoxic T lymphocyte-associated antigen (CTLA-4), or anti-PD-L1 therapeutic antibody or pathway-targeting agents 5.History of allergy to study drug components excipients