The intravascular ultrasound (IVUS) is a technique that a miniaturized ultrasound transducer is inserted into the lumen of the cardiovascular vessel through a cardiac catheter for detection, and the morphology and blood flow pattern of the cardiovascular section are displayed by an electronic imaging system. Facing the problems of insufficient imaging resolution of commercial IVUS transducers, this paper sums up and summarizes several ways to improve the imaging performance of IVUS transducers in recent years, such as increasing the frequency of transducers, using piezoelectric materials with superior performance and improving the structure of transducers, and predicts the development direction of IVUS transducers.