Disclosed are an ultrasonic diagnostic instrument and a manufacturing method thereof. The ultrasonic diagnostic instrument includes a matching layer, at least one transducer provided at a lower surface of the matching layer to generate ultrasonic waves, a first acoustic absorption layer provided at a lower surface of the transducer to transmit an ultrasonic wave generation signal to the transducer, a controller provided at a lower surface of the first acoustic absorption layer to control operation of the transducer, the controller having a recess formed in a lower surface thereof, and a second acoustic absorption layer provided at a lower surface of the controller and having an insert formed at an upper surface thereof, the insert corresponding to the recess of the controller.