Provided is an ultrasonic diagnostic device in which a Doppler waveform generation unit performs Doppler measurement at a set Doppler measurement position and generates a current Doppler waveform. A Doppler waveform evaluation unit evaluates the generated current Doppler waveform and determines whether the current Doppler waveform is a suitable Doppler waveform at the target measurement position. When it is determined that the current Doppler waveform is not a suitable waveform at the target measurement position, a Doppler measurement position variation unit performs processing for varying the Doppler measurement position. The Doppler measurement position is varied continuously until the post-variation Doppler measurement position becomes the target measurement position.
