A small-sized ultrasonic diagnostic device is provided which is capable of taking various storage positions, and good in usability. The portable ultrasonic diagnostic device includes a main body 30, a keyboard body 50, and a display body 80, wherein the keyboard body 50 is provided with an input operation key layout surface 51 on the top face thereof and coupled to the main body 30 in a rotatable manner, via a first pivot part 100 provided on a rear end of the keyboard body, and the display body 80 is provided with a display screen 81 on a front face thereof and coupled to the main body 30 in a rotatable manner via a second pivot part 200 provided on a lower end of the display body.
