This is a single-arm, multi-center clinical trial to evaluate the safety and efficacy of TQ-B3139 capsules in patients with MET gene abnormal advanced non-small cell lung cancer.

Inclusion Criteria:

• 1. Eastern Cooperative Oncology Group (ECOG) performance status score of 0 to 1; 2. Life expectancy ≥12 weeks; 3. MET-altered non-small cell lung cancer (NSCLC) ; 4. Has at least one measurable lesion; 5. Previous standard treatment has failed; 6. Adequate organ system function; 7. Left ventricular ejection fraction (LVEF) ≥50%; 8. Understood and signed an informed consent form.

Exclusion Criteria:

• 1. Has diagnosed and/or treated additional malignancy within 3 years prior to the first administration; 2. Has received c-MET inhibitors; 3. Has received other system anti-tumor treatment within 4 weeks before the first administration; 4. Has received major surgical treatment within 4 weeks before the first administration; 5. Has received radiotherapy or any surgery within 2 weeks before the first administration; 6. Acute toxicity that is ≥ Grade 2 caused by previous cancer therapy; 7. Has active infection within 2 weeks before the first administration; 8. Has currently uncontrollable congestive heart failure; 9. Has currently uncontrollable congestive heart failure; 10. Has continuous arrhythmia ≥ Grade 2, uncontrollable atrial fibrillation or QTc interval > 480ms; 11. Has uncontrollable effusion; 12. Has interstitial lung diseases; 13. Has severely unstable central nervous system metastasis; 14. Has active viral infection; 15. Has multiple factors affecting oral medication; 16. Breastfeeding or pregnant women; Men unwilling to use adequate contraceptive measures during the study; 17. According to the judgement of the researchers, there are other factors that subjects are not suitable for the study.