Intraluminal imaging technology can more accurately assess the internal structure of coronary arter-ies,clarify plaque characteristics and lesion types compared to traditional coronary angiography,and is an impor-tant auxiliary tool for guiding and optimizing percutaneous coronary intervention treatment.With the continuous development of intraluminal imaging technology,it has been widely used in the interventional diagnosis and treat-ment of coronary artery lesions.This article reviews the progress in the application of intraluminal imaging tech-nology in the diagnosis and treatment of coronary artery diseases based on clinical research and guideline recom-mendations at home and abroad.