An ultrasound diagnostic imaging apparatus which uses pulse inversion, comprising: an ultrasound probe which outputs transmission ultrasound toward a subject due to a pulse signal being input and which outputs a received signal by receiving reflected ultrasound from the subject; and a transmission unit which makes the ultrasound probe generate the transmission ultrasound by outputting pulse signals whose drive waveforms are asymmetric to each other on a same scanning line for a plurality of times with a time interval therebetween, and the ultrasound diagnostic imaging apparatus further comprises an image generation unit which combines by using pulse inversion received signals each of which is obtained from the reflected ultrasound of the transmission ultrasound generated by each output of pulse signal and generates ultrasound image data on a basis of a composite of the received signals, characterized in that the transmission unit is configured to produce the pulse signals having drive waveforms formed of rectangular waves and which are asymmetric to each other on the same scanning line, the rectangular waves being configured such that when received signals obtained from the reflected ultrasound according to the transmission are combined by using pulse inversion to form the composite of the received signals, the composite comprises a part of fundamental wave components as a remainder component which is not canceled by combining the received signals, wherein the image generation unit generates the ultrasound image data on the basis of the composite which has the part of fundamental wave components as the remainder component which is not canceled by combining the received signals. an ultrasound probe which outputs transmission ultrasound toward a subject due to a pulse signal being input and which outputs a received signal by receiving reflected ultrasound from the subject; and a transmission unit which makes the ultrasound probe generate the transmission ultrasound by outputting pulse signals whose drive waveforms are asymmetric to each other on a same scanning line for a plurality of times with a time interval therebetween, and the ultrasound diagnostic imaging apparatus further comprises an image generation unit which combines by using pulse inversion received signals each of which is obtained from the reflected ultrasound of the transmission ultrasound generated by each output of pulse signal and generates ultrasound image data on a basis of a composite of the received signals, characterized in that the transmission unit is configured to produce the pulse signals having drive waveforms formed of rectangular waves and which are asymmetric to each other on the same scanning line, the rectangular waves being configured such that when received signals obtained from the reflected ultrasound according to the transmission are combined by using pulse inversion to form the composite of the received signals, the composite comprises a part of fundamental wave components as a remainder component which is not canceled by combining the received signals, wherein the image generation unit generates the ultrasound image data on the basis of the composite which has the part of fundamental wave components as the remainder component which is not canceled by combining the received signals.