A natural exhaustion type ultrasonic diagnostic apparatus. The natural exhaustion type ultrasonic diagnostic apparatus includes a case unit forming the outer portion of a control panel for ultrasonic diagnostic apparatuses, a suction part provided at the lower portion of the case unit and forming a path through which air is sucked into the case unit, and an exhaust part provided at the upper portion of the case unit and forming a path through which the air introduced into the case unit through the suction part is discharged to the outside.
