Abstract:Dyslipidemia represents a crucial risk factor for atherosclerotic cardiovascular diseases (ASCVD). Currently, intervention strategies guided by routine blood lipid testing in clinical practice still have notable limitations in reducing its incidence risk. Lipoprotein subfractions hold great potential for uncovering residual risks, highlighting the urgent need to address the following key questions:①How to utilize lipoprotein and subfraction testing to identify and control lipid-related residual risks; ②How to carry out research centered on fine lipoprotein phenotypes to uncover their role in predicting ASCVD risk, discover new risk markers, and identify novel targets for lipid-lowering and anti-atherosclerotic treatment; ③How to facilitate the prompt clinical implementation of lipoprotein and subfraction testing to further improve the prevention, diagnosis, and treatment of ASCVD. Targeted breakthroughs in these issues will contribute to comprehensively improving the clinical prevention, treatment, and research levels of lipoprotein metabolism disorders and ASCVD in China, thereby reducing the incidence risk and disease burden.