Disclosed herein are an ultrasonic diagnostic apparatus having a movement unit movably connected to a body, and a control method thereof. The ultrasonic diagnostic apparatus includes a body, a movement unit movably connected at the body, at least one connecting unit having a first end unit rotatably coupled to the body and a second end unit rotatably coupled to the movement unit, and at least one rail installed at least at the one of the body or the movement unit such that at least the one of the first end unit or the second end unit may be slidingly moved. The movement unit may be conveniently moved to a desired position by a user.