PROBLEM TO BE SOLVED: To improve the convenience of an ultrasonic diagnostic apparatus.SOLUTION: The ultrasonic diagnostic apparatus 10 comprises a body 11 set on a floor surface 19 and an operation table 13 having an operation surface 13a on the upper surface, disposed to project outward from the side surface of the body 11. The ultrasonic diagnostic apparatus 10 also has a lighting system 30 mounted on the lower surface 13b of the operation table 13 for illuminating the space on the floor surface 19 side from the lower surface 13b of the operation table 13.COPYRIGHT: (C)2010,JPO&INPIT【課題】超音波診断装置の利便性の向上を図る。【解決手段】床面19に設置される本体11と、表面に操作面13aが設けられ、本体11側面よりも外側に突出するよう配置された操作卓13と、を備える超音波診断装置10であって、操作卓13の下面13bに設けられ、操作卓13の下面13bよりも床面19側にある空間を照明する照明装置30を備える。【選択図】図1