The present invention relates to an ultrasound diagnostic system and a method for rotating an ultrasound image displayed on a display by using a 3D position sensor and/or a joystick attached to a probe. A method for rotating the ultrasound image comprises the steps of: a) activating the probe and the 3D position sensor and/or the joystick b) forming and displaying the ultrasound image based on ultrasound echo signals acquired through the probe c) receiving information for rotating the displayed ultrasound image through the 3D position sensor and/or the joystick and d) rotating the ultrasound image based on the information.
