A technique which in a portable or laptop ultrasonic diagnosis apparatus, optimizes the position of a hinge mechanism for connecting a display section having a touch panel and a main body and the strength of the main body and also reduce the influence of noise between mutual sections, such as an ultrasonic image processing circuit board, a power source, a CPU board and the like, which are arranged inside the main body is disclosed. According to this technique, on a bottom surface of a bottom case 11 in the main body, a supporting section 12 for supporting a display section 20 is formed to stand upright and extend in a width direction, at a position that is dislocated to a front end F side from a rear end R of a main body 10. Also, a region A in which the ultrasonic image processing circuit board is arranged and regions B, C in which a power source unit and the CPU board are arranged, respectively, are partitioned by means of the supporting section 12.
