Vulnerable plaques are significant risk factors for acute ischemic events, and intraplaque neovascularization (IPN) is an important indicator for evaluating plaque vulnerability. This review summarizes the importance of IPN in the assessment of carotid plaque vulnerability, the current status of ultrasound examination of IPN, and the technical advancements in ultrasound imaging of IPN, These techniques include: Superb micro-vascular imaging; Contrast-enhanced ultrasound; Plane wave ultra-sensitive blood flow imaging; Ultrasound-targeted microbubble destruction; Ultrasound Super-Resolution Imaging. Aiming to provide a reference for the prevention and treatment of ischemic cardiovascular and cerebrovascular events.