Inclusion Criteria:  Written informed consent provided. Age 18-70 when signing the consent form, both male and female; The ECOG score is 0 or 1; Unresectable stage III non-small cell lung cancer confirmed by histopathology or cytology（III A-bulky N2, III B，IIIC）; Adequate hematological function, liver function and renal function; Female participants should not be pregnant or breast-feeding.  Exclusion Criteria:  EGFR mutation or ALK mutation was positive; Previously received systemic anti-tumor therapy for non-small cell lung cancer; Subjects who have received chest radiotherapy in the past; Known human immunodeficiency virus (HIV) infection; Any unstable systemic disease (including active infection, uncontrolled hypertension, unstable angina, congestive heart failure, myocardial infarction within the previous year, serious cardiac arrhythmia requiring medication, hepatic, renal, or metabolic disease); Pregnancy or breast-feeding women; Ingredients mixed with small cell lung cancer patients.