With the rapid development of endovascular treatment and interventional instruments in recent years, endovascular aneurysm repair has gradually replaced traditional open surgery and has become the preferred method for the treatment of abdominal aortic aneurysms. However, the poor proximal landing zone is still the main factor restricting the application of endovascular aneurysm repair. Here, the authors briefly discuss the proximal landing zone requirements in complex abdominal aortic aneurysms and the relevant clinical evidences by combining the introduction of the "chimney stent-graft", "fenestrated stent" and "multi-branch stent-graft" techniques, so as to provide recommendations for the treatment of complex abdominal aortic aneurysms.