PROBLEM TO BE SOLVED: To provide an ultrasonic diagnostic apparatus which has improved operability of user operation.SOLUTION: In normal diagnosis performed by displaying an ultrasonogram on a touch panel monitor 78, a user such as a medical doctor, an inspection engineer operates a probe with one of his or her hands and operates the operation device of an apparatus with the other hand. When desiring to freeze the ultrasonogram, the user performs touch operation of the display screen of the touch panel monitor 78 with his or her four fingers, for example.SELECTED DRAWING: Figure 5【課題】ユーザ操作の操作性を向上させた超音波診断装置を提供する。【解決手段】タッチパネルモニタ78に超音波画像を表示させて実施される通常の診断時において、医師や検査技師などのユーザは、一方の手でプローブを操作し、他方の手で装置の操作デバイスを操作する。ユーザは、超音波画像をフリーズさせたい場合に、例えば、4本以上の指でタッチパネルモニタ78の表示画面をタッチ操作する。【選択図】図5