An ultrasound output apparatus includes a display section for displaying setting information of first and second handpieces and a GUI control section that controls a number of partitions of the display section according to connection statuses of the first and second handpieces so as to display, when it is detected that the first and second handpieces are connected to the ultrasound output apparatus, setting information of the first and second handpieces on the first and second display screens, respectively, display, when it is detected that only the first handpiece is connected to the ultrasound output apparatus, the setting information of the first handpiece on the entire display section and display, when it is detected that only the second handpiece is connected to the ultrasound output apparatus, the setting information of the second handpiece on the entire display section.