The present invention relates to the technical field of medical instruments. Disclosed is a mechanical rotating intravascular ultrasonic probe, aiming at providing a forward-looking mechanical rotating intravascular ultrasonic probe of small size, high image resolution and good imaging stability； comprising a catheter (1), an ultrasonic transducer (4) disposed at the front end of the lumen of the catheter (1), and a drive device for driving the ultrasonic transducer (4) for mechanical rotation； the drive device is a micro motor (3) disposed in the lumen of the catheter (1)； the micro motor (3) comprises a rotor (31) and a stator (32)； the ultrasonic transducer (4) is fixedly disposed at the top end of the rotor (31), and is electrically connected to the rotor (31)； the rotor (31) is electrically connected to the stator (32)； the catheter (1) is a magnetic-conductive metal tube； the front end of the catheter (1) is sealed by an ultrasonic window (2) having a spherical end and allowing the ultrasonic waves of the ultrasonic transducer (4) to pass through； and the ultrasonic window (2) is filled with ionic liquid (6) having an ultrasonic coupling agent function. The ultrasonic probe solves the problems of rotation, twisting and deformation of an image formed when the catheter (1) passes through a quite narrow and diseased or curved blood vessel section, and realizes forward-looking and side-looking scanning and imaging of a vascular wall.La présente invention concerne le domaine technique des instruments médicaux. La présente invention concerne une sonde ultrasonore intravasculaire rotative mécanique, destinée à obtenir une sonde ultrasonore intravasculaire rotative mécanique orientée vers l'avant de petite taille, de résolution d'image élevée et de bonne stabilité d'imagerie； comprenant un cathéter (1), un transducteur à ultrasons (4) disposé au niveau de l'extrémité avant de la lumière du cathéter (1), et un dispositif d'entraînement pour entraîner le transducteur ul
