An ultrasonic diagnostic apparatus (1) includes: an ultrasonic probe (14) which transmits/receives an ultrasonic wave to/from an object (13) to be examined an image processing unit (16) which configures an ultrasonic image according to the ultrasonic reception signal outputted from the ultrasonic probe (14) an image display unit (2) which displays the configured ultrasonic image a touch panel (3) arranged on the front face of the image display unit (2) a touch position detection unit (5) which detects a touch position on the touch panel (3) a touch state detection unit (6) which detects a touch state on the touch panel a processing state detection unit (7) which detects the current processing state and a process decision unit (9) which decides a process to be executed according to at least one of the detected touch position, touch state, and the processing state and executes the process.